Can Ozone Get Rid of Mold Smell in a House?

Yes, ozone generators can remove mold smell from a house, but they must be used carefully and in unoccupied spaces. Ozone neutralizes the odor at a molecular level, breaking down the compounds that cause musty mold smells. However, it does not physically remove mold — just the smell — so it’s best used after mold remediation or for treating lingering odors.

If your odor issues began after a pipe leak or storm damage, it is important to understand the role of ozone generators in flood cleanup to ensure you aren’t ignoring wet drywall or subfloors..

Why Mold Smell Is So Hard to Get Rid Of

Mold smell — often described as musty, damp, or earthy — tends to cling to porous materials like drywall, carpet, furniture, and HVAC ductwork. That’s because the odor is caused by microbial volatile organic compounds (VOCs) released by active or previously active mold colonies.

Even after you’ve scrubbed away visible mold, the smell can remain embedded in the structure of your home.

That’s why people often struggle with persistent odors even after cleaning or using air fresheners.

How Ozone Neutralizes Mold Odors at the Source

Ozone (O3) is a highly reactive gas made of three oxygen atoms. When released into the air, it breaks apart and reacts with odor-causing molecules, oxidizing and neutralizing them.

In the case of mold odors, ozone targets the MVOCs responsible for the musty smell. Unlike candles or sprays that only mask odors, ozone alters them chemically.

Keep in mind: Ozone is not a mold killer in and of itself. It may help slow surface-level spores, but it won’t replace proper mold remediation — it simply deals with the smell.

Read more about how ozone works here: What is an Ozone Machine?

a picture of a man scraping mold with a ozone generator near byStep-by-Step: How to Use Ozone to Eliminate Mold Smell

If you’re considering using an ozone generator to tackle a moldy smell, follow this careful process:

  1. Confirm mold removal has already taken place. Ozone is not a substitute for cleaning. If there’s still active mold growth, address it first.
  2. Choose the right-sized ozone generator. Use this guide: Ozone Generator Sizing Guide
  3. Prepare the space:
    • Remove pets, people, and houseplants
    • Seal the room by closing doors and windows
    • Place the ozone machine in a central, elevated location
  4. Set the timer and exit the house:
    • Run for 1–6 hours depending on room size and severity
    • NEVER stay in the house while the generator is running
  5. Ventilate afterward: Wait 1–2 hours after the ozone cycle ends, then open windows and use fans to clear out remaining ozone.

More safety and timing tips: How Long to Wait After Using an Ozone Generator

A Quick Story: What Happened in Jill’s Basement

After a leak from her water heater soaked the basement carpet, Jill thought everything was fine once it dried out. But the smell stuck around. She tried candles, enzyme sprays, even baking soda — no luck.

Finally, she borrowed a friend’s ozone generator and treated the space for three hours. When she returned, the musty odor was completely gone. Two months later, still no sign of it returning. She was careful to air the basement out afterward and has since installed a dehumidifier to prevent future problems.

Ozone vs. Other Mold Odor Remedies

There are other methods people try when dealing with mold smells — here’s how ozone compares:

Method Effectiveness Pros Cons
Ozone Generator High (odor removal) Breaks down odor molecules; works throughout entire room Can’t be used around people; doesn’t remove mold itself
Vinegar Spray Moderate Cheap, easy, safe Smells bad; doesn’t penetrate deeply
Activated Charcoal Low–Moderate Absorbs odors passively Slow-acting, limited range
UV HVAC Light Preventative Kills mold spores in ducts Doesn’t eliminate current odors

Explore UV options here: Pros and Cons of UV Light in HVAC

What About the Smell in Clothes, Curtains, and Upholstery?

Mold odor doesn’t just stick to walls — it can cling to **clothes, fabric furniture, and curtains**, too. Even after cleaning the room, these soft surfaces can reintroduce the smell.
Ozone can help deodorize these items as well — but with care.

If you place affected clothing or cushions in a sealed container or small room with an ozone machine, the odor can be neutralized just like it is in the air. A few tips:

  • Place items in a closet, tote, or bathroom for targeted ozone treatment
  • Make sure fabric is dry — ozone and moisture don’t mix well
  • Let items air out completely before wearing or using again

If the smell persists even after ozone treatment, consider washing with baking soda and white vinegar, then drying thoroughly in the sun. Sunlight offers natural antimicrobial benefits and can help air out lingering odor.

Is DIY Ozone Treatment Enough — or Should You Hire a Pro?

For many homeowners, a small to medium-sized ozone machine is enough to tackle mold smells on their own. But if you’re dealing with a large home or strong odors after a flood, fire, or widespread mold infestation, professional remediation may be safer and more thorough.
If you have decided to handle the remediation follow-up yourself, you can compare the top-rated home ozone generators to find a model with the output required to neutralize deep-set musty smells.

Check out this related guide: Ozoning a House: Do’s and Don’ts

When Ozone Isn’t the Best Option

If the mold smell is coming from an HVAC system or constantly returning, ozone may only provide temporary relief. In that case, addressing moisture sources, cleaning ductwork, and adding a UV HVAC system or HEPA filtration unit may be more effective.

Alternatives worth exploring:

  • HEPA air purifiers for continuous odor and spore filtration
  • UV HVAC systems to kill airborne mold in ductwork
  • Dehumidifiers to prevent future mold growth
  • Enzyme-based cleaners for porous surfaces

Long-Term Fix: Keep Mold Smells from Returning

Using ozone may eliminate the musty odor for now — but **if the conditions that caused mold still exist, the smell will likely return.** Think of ozone as the final touch after the real work is done.
Here’s how to keep mold odors from creeping back:

  • Run a dehumidifier — especially in basements, crawlspaces, or bathrooms
  • Fix leaks and water damage immediately — even a small drip can trigger mold growth
  • Use a humidity monitor (hygrometer) to stay under 50% RH indoors
  • Ensure good airflow — open windows or use exhaust fans regularly
  • Clean or replace HVAC filters and consider a UV light system to keep ducts clear of spores

Think of odor removal as part of a bigger plan: stop moisture, improve air circulation, and use tools like ozone or HEPA filtration when needed.

FAQ: Mold Smell and Ozone Generators

Will ozone kill mold?

No — ozone neutralizes odors but doesn’t physically kill or remove mold colonies. You need mold remediation for that.

How long does it take for ozone to remove mold smell?

Most treatments take 1–6 hours depending on the size and severity of the space. Smells often fade completely within 24 hours.

Is it safe to use an ozone generator in a house?

Yes — as long as the space is unoccupied during treatment and properly ventilated afterward. Ozone can irritate lungs, so follow all safety guidelines.

Safety is paramount when treating biological odors; you should be familiar with the immediate steps to take if you accidentally breathe ozone during the process.

How can I prevent mold smells from coming back?

Control moisture with a dehumidifier, fix leaks, improve ventilation, and consider a UV light system for your HVAC to stop airborne mold spores.

Ozone is an incredible odor tool, but it is not a repair tool for moisture issues. If you’re new to ozone generators, start with our Ozone Generator Starter Guide. It explains how ozone works, when to use it, and how to use it safely before choosing a machine.

Read More About Ozone Generators

If you’re researching ozone generators, ozone safety, or ozone treatments for homes and vehicles, these articles may be helpful:

Humidifier Benefits For Skin (a beauty elixir?)

Humidifiers have traditionally been a congestion and dry nose device and something that may not come to mind immediately when you’re thinking about moisturizing your skin.

But lately, humidifiers are as likely to be found in the beauty section as much as they are in the seasonal cold and flu section.

Why is that?

It comes down to the science and a level of understanding of how the relative humidity at any given time can be at the root of dry skin.

Though it is well known that not all skin types are the same and some people have naturally oily skin and some people not so much.

But regardless of skin type, dry skin as it is related to humidity, is basically dehydrated skin.

Dry skin = dehydrated skin.

Hadley King, MD states “dry conditions can cause small cracks on the epidermis that expose nerve endings and the deeper layers of skin to the outside world”
“Increasing moisture levels helps to maintain hydration. When skin is properly hydrated it naturally combats common winter skin concerns.”

Does the humidifier help with dry skin?

One of the easiest ways to help combat dry skin as well as being one of the best all natural moisturizers is a humidifier.

Humidifiers have a single purpose. To restore humidity back to the air.

According to PubMed, the relative humidity must be maintained between 40 and 60% to minimize adverse health effects including dry skin.

Humidifier benefits for skin

Keeping the humidity in your home at an optimal level with the use of a humidifier can benefit you and be an integral part of your skin care routine by Supplementing the moisture in your skin when the cold has dried you out and the heater is drying you up.

A humidifier also benefits the skin by keeping dust levels down. When the air is dry, dust floats easily, which in turn contacts your skin much easier, drying it out that much more.

Air that has the right humidity, moistens dust and keeps it from floating.

The relative humidity also keeps allergens and viruses from being able to travel as far. When the air contains the right relative humidity, viruses and allergens, as well as other airborne bacteria, becomes too heavy to float and fall through the surface much faster.

Steam humidifiers can also help open up your pores for deep cleaning.

Facial steam humidifiers hydrate your face and allow you to remove a deeper level of dirt and bacteria from your skin

What’s the best humidifier for skin?

Humidifiers can come equipped with all types of features that were once not heard of in the humidification arena.

But the feature you should be sure to include in the purchase of a humidifier is undoubtedly a hygrometer or hydrostat as it’s also called.

A hydrostat is like a thermometer for humidity. It tells you exactly how humid the air is and allows you to set it dial in the relative humidity level that you want it to be.

Without a hydrostat/hygrometer you have no way of knowing how much humidity you need or even if you need it at all.

Another feature that you should look into when purchasing a humidifier is the capacity to run as either a warm mist humidifier or a cool mist humidifier.

Both have their advantages.
For instance a cool mist humidifier may offer more relief for a dry throat and dry nasal passages. They are also infamously endorsed as a better option for cold symptoms or congestion and sore throats by Mayo Clinic.

Cool mist is also recommended for children because it doesn’t offer any risk of getting burned and when you’re sleeping with the humidifier running for relief during the night, steam is not something you’re looking for.

But on the other hand, steam humidifiers have other benefits like helping you be able to exfoliate your skin and well with different additives like eucalyptus that can help you better also.

So if you can purchase a humidifier that can operate as both a cool mist and a steam humidifier, that’s the direction to take.

Another thing you should keep in mind when purchasing a humidifier is that they require regular cleanings to keep them from becoming a point of origin for bacteria and mold.

There are many humidifier brands these days that make the process of keeping the humidifier clean much easier and less frequent.

Humidifiers like the Dyson AM10 use ultraviolet light to target bacteria and mold inside of a humidifier basin, while other humidifiers like the Taotronics use antimicrobial plastic in their construction to keep mode from being able to grow inside of the unit.

There are also different types of additives like Guardian Aquasticks you can put directly into the humidifier basin to keep mold and bacteria from becoming an issue as fast.

Wrap up

Humidifier Benefits for Skin

Dry skin and skin care maintenance may not be something you immediately associate with humidity and humidifiers, but the truth is the two actually go hand in hand.

Skin moisturizing should always start with making sure your air humidity is between 40 to 60%. If the relative humidity is below 40%, then your skin can become dehydrated very quickly.

Thankfully, there is an easy solution for dry air. The good ol humidifier.

Only humidifiers these days come with features like hydrostats that allow you to dial in the exact humidity you need.

Not only that, you can purchase humidifiers that can run up to 60 hours without refilling.

Other features like self cleaning technologies and combination hot and cold mist make humidifiers a must have for maintaining healthy skin.

Where to Put a Humidifier When You’re Sick

correct placement of a cool mist humidifier near the bed when sick showing 3 to 5 feet distance and ideal humidity levels

Where to Put a Humidifier When You’re Sick

Experts recommend cool mist humidifiers near your bed (avoiding direct mist) for congestion & dry coughs. Read on for specifics!

According to the Mayo Clinic, a cool mist humidifier works by increasing moisture in the air, which can soothe irritated respiratory passages and make it easier to expel mucus. The moist air also prevents tissues in your nose and throat from drying out, which can worsen coughs and sore throats.

best place to put a humidifier when sick near the bed

When you’re battling a cold, cough, or congestion, using a humidifier can be a game-changer for your comfort and recovery. Here’s everything you need to know about choosing and using a humidifier to ease your symptoms.

What Type of Humidifier Is Best for Coughing and Congestion?

For coughing and congestion, cool mist humidifiers are generally recommended. They add moisture to the air without heating it, making them safer around children and during sleep. Cool mist options like ultrasonic or evaporative humidifiers are ideal for easing respiratory symptoms.

What to Set Your Humidifier At When Sick

The ideal humidity level in your room should be between 30-50%. Higher levels can promote mold and dust mites, while lower levels might not provide enough relief. Use a hygrometer to monitor and adjust your humidifier accordingly, aiming for the higher end of this range when dealing with congestion.

safe indoor humidity levels when sick showing ideal 30 to 50 percent range with warnings for mold and condensation

How Close Should a Humidifier Be to Your Face?

It’s best to place the humidifier about 3-5 feet away from your bed. This distance allows the mist to disperse evenly throughout the room without directly impacting your face, which can cause discomfort or excessive moisture.

Does Sleeping with a Humidifier Help a Cold?

Yes, sleeping with a humidifier can help alleviate cold symptoms. The added moisture in the air can soothe irritated tissues in your throat and nasal passages, making it easier to breathe and promoting better sleep.

When running a humidifier overnight, water quality and humidity level matter just as much as placement. Using mineral-heavy water or letting humidity climb too high can lead to residue, irritation, or discomfort by morning — especially when you’re already sick.

If symptoms seem worse after overnight use, it’s often tied to water choice or buildup rather than the humidifier itself. We explain when distilled water really makes a difference (and when tap water is usually okay) in our guide to using distilled water in a humidifier.

Does Sleeping with a Humidifier Help with Congestion?

Absolutely. A humidifier can help loosen mucus, making it easier to clear congestion. The moist air also prevents the drying out of nasal passages, reducing the stuffy feeling that comes with a cold or flu.

Best Humidifier for Coughing at Night

When choosing a humidifier for nighttime cough relief, look for:

  • Quiet operation: Ensures your sleep isn’t disturbed.
  • Cool mist feature: Safer and more comfortable for continuous use.
  • Adjustable settings: Allows you to control the output for optimal comfort.
  • Easy maintenance: Reduces the risk of bacteria and mold growth.

Ultrasonic cool mist humidifiers are often favored for their quiet operation and fine mist, making them excellent for use during sleep.


Best Humidifiers for Your Bedroom

Best Overall:

Honeywell HCM-350 Cool Moisture Humidifier

For overall effectiveness and peace of mind, the Honeywell HCM-350 Cool Moisture Humidifier stands out.
This evaporative humidifier combines whisper-quiet operation with a large tank for extended runtime, ensuring uninterrupted relief throughout the night.

Plus, the built-in UV light provides an extra layer of protection against bacteria and mold, giving you peace of mind as you breathe easy. While its footprint might be slightly larger, its comprehensive features cater to those seeking maximum relief and long-lasting comfort.

Key features:

  • Quiet operation: Evaporative design minimizes noise for undisturbed sleep.
  • Large 1.1-gallon tank: Provides up to 24 hours of runtime on low setting.
  • Three fan settings: Customize mist output for your comfort level.
  • Built-in UV light: Kills bacteria and mold for cleaner air.

Considerations: Slightly larger footprint compared to other options.

Check HoneyWell Price Here


Runner Up:

Levoit 6L Cool Mist Top Fill Essential Oil Diffuser

If you prioritize extended performance and a touch of luxury, the Levoit Humidifiers for Bedroom Large Room Home is a strong contender.

This feature-packed model boasts an impressive 6-liter tank for long-lasting use, coupled with multiple mist settings for precise control over the airflow.

What’s more, the built-in aromatherapy diffuser allows you to add essential oils for an extra touch of relaxation.
While it comes at a slightly higher price tag, the extended runtime and spa-like features might be worth it for those seeking ultimate comfort.

Key features:

  • Large 6-liter tank: Offers up to 60 hours of runtime on low setting.
  • Four mist settings: Precise control over mist output for optimal comfort.
  • Built-in aromatherapy diffuser: Add essential oils for enhanced relaxation.
  • Optional night light: Provides a soft glow for a calming ambiance.

Considerations: Slightly pricier than other options.

Check Levoit Price Here


Best Value:

Pure Enrichment MistAire Ultrasonic Cool Mist Humidifier

On a budget? The Pure Enrichment MistAire Ultrasonic Cool Mist Humidifier delivers effective relief without breaking the bank. This compact and affordable option offers quiet operation, a decent 1.5-liter tank capacity, and a 360-degree mist nozzle for even distribution. While its tank size is smaller than the others, it remains a great value choice for basic yet effective cough relief.

Key features:

  • Affordable price: Budget-friendly option for basic needs.
  • Compact design: Takes up minimal space on your nightstand.
  • Quiet operation: Doesn’t disrupt your sleep.
  • 1.5-liter tank: Provides up to 25 hours of runtime on low setting.
  • 360-degree mist nozzle: Ensures even distribution of moisture.

Considerations: Smaller tank capacity compared to other options.

Check Pure Enrichment Price Here

where should a humidifier go when your sick

Frequently Asked Questions (FAQ) About Using a Humidifier When Sick

Q1: What are the benefits of using a humidifier when I’m sick?
A1: A humidifier increases the moisture level in the air, which can help soothe irritated tissues in the nose and throat, ease coughing, relieve congestion, and improve overall comfort when you’re sick.

Q2: Cool mist vs. warm mist humidifiers: Which is better for colds and congestion?
A2: Cool mist humidifiers are generally recommended for colds and congestion because they emit moisture at room temperature, making them safer and more comfortable, especially during sleep.

Q3: How does a humidifier help with coughing and sore throat?
A3: By adding moisture to the air, a humidifier can prevent the drying out of respiratory passages, reducing irritation that leads to coughing and sore throats.

Q4: What is the ideal humidity level for a room when using a humidifier while sick?
A4: The ideal indoor humidity level is between 30-50%. This range helps relieve respiratory symptoms without promoting the growth of mold and dust mites.

Q5: Can using a humidifier reduce the spread of airborne viruses?
A5: Proper humidity levels can reduce the survival of certain viruses in the air, potentially lowering the risk of infection, but it should not be solely relied upon for virus control.

Q6: How close should I place the humidifier to my bed?
A6: Place the humidifier about 3-5 feet away from your bed. This ensures even moisture distribution without making the area around your bed too damp.

Q7: Is it safe to use tap water in my humidifier?
A7: Using distilled or demineralized water is recommended to avoid the buildup of minerals and the release of white dust into the air, which can occur with tap water.

Q8: How often should I clean my humidifier, and why is it important?
A8: Clean your humidifier at least once a week to prevent mold, bacteria, and mineral buildup, which can be released into the air and potentially worsen health issues.

Q9: Can I use essential oils in my humidifier for additional relief?
A9: Some humidifiers are designed to work with essential oils. Check your humidifier’s specifications first, as oils can damage certain types of humidifiers and void warranties.

Q10: Are there any risks associated with using a humidifier?
A10: If not maintained properly, humidifiers can promote the growth of mold and bacteria. Overuse can also lead to excessive humidity, potentially causing respiratory issues and discomfort.

Q11: What features should I look for when choosing a humidifier for cold and flu symptoms?
A11: Look for features such as quiet operation, adjustable mist settings, ease of cleaning, automatic shut-off, and the capacity to run throughout the night.

Q12: How can I tell if my room is too humid or not humid enough?
A12: Use a hygrometer to measure the room’s humidity level. Signs of low humidity include dry skin and static electricity, while high humidity may cause condensation on windows and damp surfaces.

Q13: Can sleeping with a humidifier help prevent getting sick?
A13: While a humidifier can alleviate symptoms and improve comfort, it’s not a standalone prevention method for illnesses. Maintaining clean hands and a healthy environment are crucial for preventing sickness.

We cover all the common questions and solutions in our full humidifier guide.

Why Does my Humidifier Smell Like Fish? (9 Easy Solutions)

Why Does my Humidifier Smell Like Fish?

A fishy odor coming from a humidifier is an indication that there is mold and mildew somewhere inside the humidifier. Stagnant water is typically present when a humidifier is smells like fish or urine.

If you have a humidifier that has a unpleasant smell emanating from it, you can be sure a deep cleaning is needed. The humidifier should unplugged and carefully taken apart and washed thoroughly.

You should consider soaking each part in hot water. A dash of bleach added to the water will help kill any lingering bacteria. If you have a humidifier that is dishwasher safe, then by all means, take that route.

Other complaints about odors coming from a humidifier usually are related to the smell of plastic burning or just the smell of burning.

The smell of plastic burning from the humidifier can be the simple smell off-gassing from the plastic heating up for the first few times if the humidifier is new. A smell that should very quickly wear off after a few uses.

On the other hand, is humidifier is not new, then there is a problem with overheating.

In that case, a inspection should be done around the humidifier to see if you find any type of visible burn marks or plastic warping. The power cord should also be inspected to make sure that it is not burning at the outlet.

If there is a problem with the power going to a specific outlet, you can easily plug the humidifier into a different outlet that is on a different circuit and see if you get the same type of burning smell. If you do, then your humidifier is to blame. If you don’t, then your own electrical system is to blame.

Portable humidifiers typically only use about 30 to 50 w. Very little energy, and not enough to trip a breaker. Burning is not natural.

Humidifier Hacks for Smelly Humidifiers

People have tried all types of solutions and additives to put in humidifiers to keep them from smelling and help add a fragrance to the room through the use of a humidifier.

Some make a lot of sense and work great, others not so much.

Caution: Humidifiers have a lot of working parts that need to have a clear pathway for water to flow. Anything you put into a humidifier that can clog up a nozzle for instance is a No-No.

Humidifiers that can be used for aromatherapy and essential oils have a separate compartment to put those items.
The reason is that they are oily and oil does not mix with water.

The result of adding essential oils directly into the water of a humidifier is the likelihood of clogging up the waterways needed inside of the humidifier for it to work properly.

Can you put Vicks in the humidifier?

Vicks is a perfect example of a product that should not be added to the water of a humidifier. The gummy texture of Vicks will clog up a humidifier very quickly.

But on the other hand, if you use a Vicks humidifier that has a separate compartment to put the Vicks salve, then the combination is an excellent means of moistening the air and adding the medicated aroma of Vicks that can help you breathe better and relieve congestion.

“The point is no oily or gummy anything should be added into the water of a humidifier.”

But there are things you can put into the water of a humidifier to help keep the humidifier fresh and clean and also add an extra ambience to a rooms existing atmosphere.

Can I put perfume in my humidifier?

Adding perfume or cologne to the water in a humidifier is a excellent and convenient way to add a fresh scent to the air while you’re humidifying it.

Do not use any type of perfumes that have a oily texture to them though. Most perfumes in colognes are alcohol-based and do not have anything in them that will clog a humidifier.

The caveat of putting perfume in the water of your humidifier is to start off slow and only add a few sprays or squirts and then see what kind of difference it makes. If you need more you can always add a little more. Not as easy to take some out. You’ll end up having to dilute the water by dumping some out which will be a waste of perfume and water.

Can I put bleach in my humidifier?

Adding a small amount of bleach to the water of a humidifier is a great way to reduce the amount of time it takes for mold and bacteria to take root inside of the water basin.
Remember A little dab will do you when it comes to bleach. The ideal is to add only enough bleach to aid in keeping the humidifier cleaner.
Too much can give you a headache and many people are very sensitive to the smell of bleach.

So be cautious not to overdo it and start off very light and only add a little more in steps as needed.

Many humidifiers brands suggest adding a drop of bleach into the water basin of their humidifiers. So it is a common practice.

Can I put lemon in my humidifier?

Lemon is a great additive to put in the water basin of humidifier. Not only does lemon have very many natural cleaning agents in it that will help reduce and keep the amount of mold and bacteria that can take root in a humidifier down, it also will add a fresh lemony citrus scent to your room when the humidifier is running.

Lemon scent is one of the most air freshening and odor killing and reducing scents there is. Many household cleaners come in lemon scent for just that reason.

It only makes sense that adding lemon scent to a humidifier makes good sense.

Can you put vinegar in a humidifier?

Vinegar is a all natural mold inhibitor and mold and bacteria cleanser that makes a great additive to put in your humidifier water.

Vinegar also has its own medicinal properties that can aid in the loosening of chest congestion when you breathe it.

And a lot of people do not realize that in a Coke vs Pepsi type of challenge between bleach and vinegar, the vinegar was better at cleaning mold then bleach. And has a much better success rate at cleaning mold that is below the surface.

How much vinegar do you add to the humidifier water? The answer is two you can smell it. Nobody likes the overpowering smell of vinegar, so starting off small and adding a little till you get just the right amount is the best way to add vinegar to your humidifier.

Can I add baking soda to my humidifier?

Baking soda is a great odor absorbing substance that can be added to the water basin of a humidifier to reduce the musty smells that can come from a humidifier.

Baking soda also has a cleaning element to it that will help break down and rid your humidifier of mold and bacteria.

When it comes to adding baking soda to your humidifier, you should check your owner’s manual because baking soda has an abrasive texture to it and can cause erosion in certain cases.

Can I put vanilla extract in my humidifier?

Vanilla extract should not be put directly into the water of a humidifier because of its oily texture. Oil and water do not mix. The result will be oil clogging up the necessary waterways that your humidifier requires for working appropriately.

Can I put Downy in my humidifier?

Putting Downy in a humidifier will not provide any extra benefit to the humidifier because it is a fabric softener. It will also not add any benefit to the air quality since air lacks the capacity be softened.

But many air fresheners come in Downy smell and any problem that could arise from adding fabric softener to the water in your humidifier is very minimal because fabric softener dissolves in water very well.

Can you put hydrogen peroxide in a humidifier?

Hydrogen peroxide is a inexpensive alternative to adding commercial mold inhibitors to your humidifier water.

On top of being a mold inhibitor and cleaning agent, hydrogen peroxide also has
an enzyme type property that will help eliminate the smell of urine often associated with humidifier water.

One of the Great DIY humidifier hacks is adding a few drops of hydrogen peroxide to your humidifier water every time you fill it up.

Summary

Humidifiers are meant to add moisture to the air as a means of relieving the symptoms that often arrive with dry and arid conditions. But when they add more to your air, as in a fishy, moldy, and even a urine smell, you’ve got a problem with mold and bacteria growing in and around your machine.

But there are solutions to keeping any humidifier smells at bay and getting the right results that were intended with the humidifier in the first place.

The main thing to remember when adding anything to your humidifier water is that it has to dissolve in water and or mix well with water.

Anything that has an oily or gummy texture to it like essential oils or medicinal salves like Vicks can clog up your humidifier and make it ineffectual to do the job of moistening the air it is intended for.

But there are some great additives that you can put right into humidifier water, and most you probably have in your house already.

Many people get great results from putting all natural bacteria and mold inhibitors like vinegar, lemon, and peroxide right into the water basin of their humidifier.

Other items like cologne, perfume, and even fabric softener like Downey can turn the humidifier into an excellent combination air moisturizer and deodorizer.

We hope you found something in this article that you can use or spur your own imagination for ways that you can utilize your humidifier.

Self Cleaning-Germ Free-Low Maintenance Humidifiers. Really?

Humidifiers are notorious for being high maintenance machines because of the nature of their design and that they require a basin of water to work.

3 different types of Humidifiers that qualify as “self cleaning”:


1. UV sterilization
2. Germ resistant plastic
3. Germ and Bacteria Resistant Water Additives
4. Vaporizer

Why does that make Humidifiers high maintenance?

Because of the easy formation and growth of mold that happens inside of a humidifier when it is not maintained properly.

And the fact that the mold growth inside of the machine becomes part of the humidity being expelled into the room when the unit is in operation.

Breathing mold spores can trigger asthma and exasperate allergies. That’s not good.

Humidifier ULTRAVIOLET STERILIZATION

Wouldn’t it be great if there was such a thing as a “self cleaning humidifier”?

Technically a vaporizer is a type of Humidifier that is considered a self cleaning humidifier because is boils water as a means of creating steam. The boiling process kills any mold or bacteria in the operation.

But vaporizers are not for everyone and most people considered them to unsafe to keep in the babies room or children regardless.

So where does that leave the idea of a self cleaning humidifier?

There is not yet such a thing as a completely self cleaning humidifier that requires no maintenance.

But there are multiple ways that the issue the mold growth in humidifiers is being addressed, and different technologies that are being invented and used to make humidifiers safer.

1. Antimicrobial plastic

One of the most exciting innovations in humidifiers is the use of germ and bacteria resistant materials in the construction of the humidifier.

Antimicrobial plastic contains biocide polymers that combat the production of mold and mildew on the surface of the plastic. It has a ton of applications and seems to be perfectly suited for humidifiers.

Not only can humidifiers be completely built out of antimicrobial plastic, the filter inside of the humidifier can also be coated with the same type of product to keep the filter from becoming a moldy mess too.

Which, as you probably have already realized, is an amazing leap for appliances like humidifiers and dehumidifiers, as well as air conditioners and water-based air purifiers.

Since the one thing all of these appliances have in common is that they are subject to mold and bacteria growth,

If the materials that the humidifier is constructed of are resistant to mold growth, and the filters within them are also resistant to mold, then the search for a self cleaning humidifier is nearly half over.

Nearly half?

Yes, nearly half. The reason is, that humidifiers not only grow mold on the plastic and construction itself, they also have a tendency to get mold on the surface of the water inside of the basin when it is not changed often.

And keep in mind, the whole point of the humidifier is to use the water in the basin to emit into the air to increase the humidity in a room.

If the water in the humidifier basin has mold and mildew when the machine is running, then the humidity droplets in your air will also be full of mold spores and bacteria.

Keeping mold and mildew from growing on the surface of the humidifier, regardless of it being inside or out, is a mind-blowing advancement in humidifier innovations, but it is yet only half the battle.

Keeping mold and germs from growing in stagnant water is the other side of the equation that would make a humidifier actually “self cleaning”.

2. Ultraviolet sterilization

Fortunately there is already people who are making products to remedy the situation of mold growing on the surface of the water inside of a humidifier.

UV lamps are used in multiple industries to help reduce the spread of mold, bacteria, and viruses.

You have probably seen aquariums with a blue light inside of them. The blue light is a ultraviolet lamp that is targeted on the inside of the aquarium to help reduce the amount of algae and mildew that tends to take over an aquarium pretty fast.

Another place might have seen this same procedure in action is in a barber shop. Barber shops oftentimes have a cylinder that they put their Combs and scissors in that employees a UV lamp to clean and disinfect their utensils while they are not in use.

This is exactly the same way that ultraviolet light can be used in a humidifier.

Positioning a ultraviolet light inside of a humidifier to continuously Target the water inside of the basin is a proven method of reducing the amount of contaminants that may be emitted into your airstream in the humidifying process.

Combining ultraviolet light in a humidifier that is constructed out of antimicrobial plastic seems to cover all the bases in the search for a self cleaning humidifier.

self cleaning humidification

3. Germ and Bacteria Resistant Water Additives

Another technology that is used to combat the production of mold in the water of a humidifier is anti mold and germ pods that you purchase to place inside of the basin with the water.

This is more of a back road country recipe that has become more mainstream.

The ideal is to put an additive in the water that keeps mold from taking hold.
Colloidal silver is a natural antibiotic that also has antimicrobial properties.

Although you can purchase colloidal silver and just add it to the water in your humidifier, you can also purchase pods and sticks that contains silver in them that will do the same thing as adding colloidal silver.

“There is a problem with these additives though, they are only useful in ultrasonic humidifiers.”

Another do-it-yourself home recipe for keeping the water in your humidifier fresher longer is to add a little bit of vinegar to the water in your humidifier.

Vinegar is actually one of the best all natural mold cleaners there is. Even edging out bleach because of its ability to get down under the surface better.

Some people even advocate breathing vinegar steam to get rid of chest and head congestion. But if that is something you want to try, you should do your own research and probably stick with apple cider vinegar which is loaded with enzymes and vitamins.

Recap

There is no humidifier that it is 100% self cleaning. But there are newer technologies available that make it nearly a reality.

Technologies like antimicrobial plastic that resists mold growth can be used in the construction of the humidifier making the materials the humidifier is made out of already mold resisting.

The filters inside of humidifiers can be coded with the same type of polymers that are contained in the antimicrobial plastic, which we’ll also help the filter for becoming a mold farm.

As for the water in the basin, there is a couple of technologies that can help keep the water fresher, longer.

One one is the use of ultraviolet light targeting the surface of the water so that mold and algae cannot take root.

Another is to add anti mold pods that contains silver. Silver is a natural antimicrobial that can help the water in the basin of your ultrasonic humidifier stay safer.

After all the point is to add clean humidity to your air so that you can breathe better.
Adding humidity that is laced with mold and germs is a quick way to trigger allergies and asthma.

9 Self Cleaning Humidifiers and or Options

  1. Aqua stick
  2. Safety First A clean humidifier
  3. Pure guardian h5450bca
  4. Dyson am-10
  5. Pure Enrichment Mistaire Eva
  6. Air innovations
  7. Winix humidifier
  8. Crane
  9. Boneco

Many of the reviews of so-called germ-free humidifiers are negative because people seem to have the expectation that there is no cleaning involved whatsoever. Unfortunately that’s just not the case.

For instance, The main issue with using UV in a humidifier is that the UV light has to be targeted directly on the bacteria or mold to be effective at destroying the germs.

So even though incorporating a UV lamp inside of a humidifier will definitely help cut down on mold and bacteria,

You shouldn’t expect every square inch of the humidifier to be in the direct target of the UV.

Some, like the Dyson a.m. do a much better job then others,

But the idea that you do not have to clean the humidifier ever because it has a UV lamp is not realistic.

The same thing goes for humidifiers that have the antimicrobial silver induced plastic. Do they help reduce germs in the water tank of a humidifier? Yes, no doubt.

But does that mean that there is no cleaning to be done? Not at all. There has yet to be invented an additive but you can place it in a humidifier that will completely kill 100% of all bacteria and mold.

Self-cleaning humidifiers are better called low maintenance humidifiers because they incorporate methods to help curb bacterial growth and reduce the amount of cleaning.

Some are better than others.

But there is no such thing as a humidifier that is completely germ-free.

Click here for AquaStick

Aquastick

AquaStick

Aqua stick is an additive that you place inside of your humidifier similar in looks to a cleaning stick that you place in the back of your toilet.

They are an inexpensive way to help keep mold and bacteria from growing inside of your humidifier. They can be used for up to two to three months without having to be replaced.

They also have a reputation of being able to use tap water. Which carries with it a huge advantage.

Many of the humidifiers that we review that are designed to be antimicrobial for less cleaning use silver induced materials in their construction.

Aqua stick is a way of using silver in your humidifier tank without having to pay for a humidifier that is made from antimicrobial silver induced plastic.

This product is made by guardian technologies who also build antimicrobial humidifiers.

Remarks:

One of the easiest ways to keep bacteria and germs from growing in your humidifier. And they work with any humidifier regardless of the brand.

Buy Safety 1st Stay Clean Here

Safety 1st Stay Clean humidifier

Safety 1st Stay Clean humidifier

The entire marketing of this humidifier is based on the fact that it is supposed to be self cleaning. But to be fair, the literature says there is “less cleaning”.

Unfortunately the reviews on Amazon are pretty heavily slanted to the opposite. Lots of complaints of pink residue in the bottom of the humidifier.

The fact that the Blue lamp in this humidifier is an LED light and not an ultraviolet light is probably the reason people are not seeing the results they expected.

As a basic humidifier it does not require a filter which is a plus but it does not have any of the regular features like humidistat, or aromatherapy tray.


Dimensions 10.75 * 8.9 * 8.9 in
Weight 3 lb
Square footage: unlisted
Tank size: unlisted

Features:

  • Antimicrobial LED light

Buy Pure Guardian Here

Pure Guardian H5450BCA

Pure Guardian H5450BCA

This humidifier has different methods to help to keep bacteria and mold from growing inside of a humidifier.

The first is a non ozone UV-C light. The second is that it has silver embedded into the housing.
The third is the fact that it works as a warm mist humidifier as well. Which means that the water in the humidifier must be risen to a boiling temperature which will destroy bacteria.

Ultraviolet light is a proven method of destroying germs and bacteria when it is targeted directly upon them.

Silver is an all natural antibiotic that has a purifying effect on water.

This humidifier doesn’t make any claims suggesting that it is 100% germ-free or self-cleaning, only that it has incorporated a couple of methods that work to help reduce germs and cleaning.

And this pure guardian humidifier has a lot of features that make it an excellent humidifier regardless.

Features:

  • Works as a warm mist or a cool mist humidifier
  • UBC
  • 100 hour runtime
  • 380 square feet coverage
  • Aromatherapy tray

Remarks

The real deal. Pure Guardian not only employs the UV lamp to target bacteria and germs inside of the tank, the tank itself is embedded with silver, an all natural antibiotic known to reduce bacteria.

Purchase Dyson AM-10 Here

Dyson am-10 humidifier

Dyson AM-10 humidifier

This is a humidifier and fan all-in-one.

Dyson am-10 uses a UV lamp that exposes every drop of water to the ultraviolet light.

And claims to kill 99.99% of bacteria inside of a tank.

It is an intelligent appliance that measures the temperature and moisture of the air to control to keep the ideal climate continuously in your room.

It is a 3 l tank and works up to 12 hours before having to have a refill.


Manufacturer: Dyson
Dimensions: 8.7 by 9.4 by 22.8 in
Weight: 7.5 lb
Tank size: 3 l
Square footage: not listed
Type: ultrasonic

Features:

  • UVC lamp
  • Fan
  • Humidistat Auto shut-off

Remarks:

This is a Dyson product so the price is significantly higher than most.

They do have a reputation of being very effective and the fact that it is a powerful fan as well as a germ-free humidifier makes it very interesting.

This air purifier doesn’t feature a way to diffuse essential oils.

The reviews are a mixed bag. Some people love this humidifier, other people hate it.

Click here for Pure Enrichment Mistaire Eva

Pure Enrichment Mistaire Eva

Pure Enrichment Mistaire Eva

This is a low maintenance humidifier that incorporates an antimicrobial filter.

It doesn’t make any huge claims of killing 99% of bacteria or even reducing it.

Only that it helps fight allergies by trapping and killing airborne allergens in the filter.

It does claim to dramatically reduce the amount of white dust you typically find around ultrasonic humidifiers though.

The humidifier uses a technology called whirlwind fan that captures cools and humidifies the air up to 500 square feet.

It offers for fan speeds and an auto off timer. It also offers turbo speed.

It also serves as a night light that can be changed to 7 different colors.

One feature missing is the aromatherapy option.

Item model number: PHHUMEVA

Dimensions: 9.5 by 9.5 x 13.5 in
Weight: 5.49 lb
Square footage: 500 square feet
Tank size: 2.8 l
Warranty: 5 years

Features:

  • 500 square feet
  • Antimicrobial filter
  • 25 hour runtime
  • Multiple settings including turbo mode
  • 7 color night lights

Remarks:
It has an amazing new technology that helps it cover large areas. But they don’t tell say what it is or how it works. A little fishy.

Purchase Air Innovations on Amazon

Air innovations

Air Innovations humidifier

Air innovations feature one of the most stylish humidifiers available.
But style is not the only thing it features.

This humidifier can run 96 hours and humidify a room up to 600 square feet without refilling.

It also includes a remote and a digital display hygrometer / humidistat.

The reason it is featured as a low maintenance, germ-free humidifier is that it is made from antimicrobial plastic. Which resists the growth of mold and bacteria in the tank.


Manufacturer: great innovations
Dimensions 8 by 8 by 18.5 in
Weight: 3.83 lb
Square footage covered: 600 square feet
Run time without refilling: 96 hours

Features:

  • Adjustable humidistat that adjust according to the relative humidity in the room
  • Remote
  • Auto shut off and beat notification when it runs out of water
  • 15 inch extension nozzle
  • Aromatherapy option
  • Antimicrobial plastic construction

Remarks:

Easily one of the all around best humidifiers available. The humidifier features just about everything you can possibly want out of a humidifier and looks great doing it.

Buy Winix LightCel UV Humidifiers Here

Winix Ultrasonic humidifier with LightCel UV

Winix Ultrasonic humidifier with LightCel UV

Winix is known for their air purifiers that feature Plasmawave technology.

With this humidifier they have dove into the humidification world with a humidifier that has a UV +LED Light that targets bacteria and germs before they can become an issue and your humidifier.

It includes demineralization capsules that will help reduce the amount of cleaning also.

This humidifier holds two gallons of water and it will run for 120 hours without having to refill it.

And it can also be used as either a cool mist or a warm mist humidifier.


Manufacturer: Winix
Dimensions 8.5 x 10.6 by 14.6 in
Weight: 5.9 lbs
Tank size: 2 gallons
Maximum noise level: 30db

Features:

  • UV + LED antibacterial light
  • 120 hours between refills
  • 2 gallon tank
  • Programmable timer
  • Auto shutoff
  • Very quiet at 30 fb
  • Warm mist and cool mist
  • Demineralization capsules included

Remarks:

Winix have successfully managed to carve out a space for ionic technology in the air purification world that is dominated by HEPA filters.

And it looks like they have managed to design an excellent humidifier that helps control bacteria as well as keeps the humidifier cleaner longer as well.

Click here for Crane Humidifiers

Crane humidifier with UV

Crane humidifier with UV

This is a humidifier that features all the bells and whistles but with a twist, it contains a UV lamp to kill bacteria and germs in the water tank before they become a cleaning issue and a breathing issue.

Variable speed settings and an adjustable 360 degree Mist lid make it excellent for using in a large area. It can humidify rooms up to 500 square feet and run for 24 hours without having to refill.

But it does not contain an aromatherapy option.


Manufacturer: Crane
Dimensions: 14 by 10 by 16 in
Weight: 7.26 lb
Square footage covered: 500
Tank size: 1.2 gallons
Run time: 24 hours between refills

Features:

  • ultraviolet ionizing light
  • 500 square feet
  • Adjustable sit and leave humidistat
  • Easy to clean

Remarks

This crane humidifier does not feature an aromatherapy essential oils option.
But it does say that it creates a refreshing smelling mist.

Ionizing air purifier manufacturers often spin the smell of ozone coming from their units as an “after a thunderstorm fresh smell”.

This humidifier doesn’t make any claims of ozone production but it is interesting that they use the same language and that they have an ultraviolet ionizing lamp included.

The reviews are hit-and-miss with a lot of people saying that the humidistat failed fairly soon after their purchase.

Click Here to Purchase Boneco s450

Boneco s450

Boneco s450 humidifier

There is a way to bypass all the issues of adding a ultraviolet lamp to a humidifier or putting additives in the tank or purchasing a humidifier that’s made out of antimicrobial plastic,

And that is to purchase a warm mist humidifier that boils the water before it is emitted into the air as steam.

Warm mist humidifiers or vaporizers are not for everyone because steam will raise the temperature in a room.

But as far as warm mist humidifiers go, Boneco has a humidifier that is next level.

It can humidify an area as large as 860 square feet. And it is very quiet coming in at 37 db on the high side.


Manufacturer: Boneco
Country: Switzerland
Dimensions: 13.2 by 9.5 by 14 in
Tank size: 2 gallons
Weight: 10.1 inches
Wattage: 480

Features:

  • 860 square feet coverage
  • Humidity display
  • Humidistat
  • Mist output control
  • Safety Auto shut-off
  • Programmable timer
  • Essential oil options

Remarks

This is a warm mist humidifier that has all the bells and whistles you typically find with the big brands like Levoit.
Warm mist vaporizers or an easy way to get a bacteria free experience from a humidifier.

But they do use steam to humidify, which can make a room feel swampy.

This is a real nice humidifier but personally I would pick a humidifier that has a cool mist option as well as a warm mist often.

Symptoms of High Humidity in Your Home (A Long Frizzy List)

If there is one thing that I have learned this past summer season is that a little humidity goes a long way.

This has been, no doubt, one of the rainiest spring and summer seasons I have ever lived through.

The heat has been through the roof and the air conditioners don’t even feel like they’re on half the time.

I guess we all know how miserable, excessive humidity can feel going through our regular work and school days.

And just about everybody has had an experience with their hair looking terrible because of the humidity outside,

But comfortability and great hair could be the least of your worries when the humidity has risen sky high in your home.

Symptoms of High Humidity in Your Home

If you tell tale signs that the humidity inside of your house is too high.

symptom of high humidity in your home1. Condensation on the windows

Everybody knows what it looks like in the bathroom when they get out of a hot steamy shower.

The mirror gets completely fogged over in the windows get a layer of condensation on them.

That’s par for the course and completely understandable in the bathroom.

But if you have condensation on the windows in other parts of the house, that’s not normal.

That is definitely a symptom of high irregular moisture in the air.

2. Allergies and breathing issues

Air that is heavy with humidity can be harder to breathe. Especially if you’re coming from an area that is dry and traveling to an area that is extra humid like the tropics.

But adapting to breathing extra wet air is not the only thing that makes humidity tough on your respiratory system.

Humidity just happens to be one of the main ways that dust mites get their nourishment.

Heavy humidity can cause an explosion of dust mites. Which are a common household allergen that can cause you to have multiple symptoms like sneezing, itchy eyes, and coughing.

Another allergen known to be spurred on by higher humidity is mold. More specifically the mold spores that are released from the mold and travel through the air looking for the next place to take root.

Allergies and breathing problems while in the house can definitely be a symptom of high humidity.

3. Visible mold growing on the wall

If you have mold on the wall, there is no doubt that you have an issue with high humidity in the area of said mold.

Humidity is not only caused by climate, you can just as easily because of a leaking pipe.

Mold only needs a simple recipe of dampness, darkness, and something to feed on.

That’s why you find mold growing in places like under the kitchen and bathroom sinks so often.

If you find mold growing on the walls, you will also find a source of moisture fairly close by. Guaranteed.

4. Wet drywall

If a room is exposed to heavy humidity for too long, the drywall can begin to absorb moisture out of the air.

The result can be areas in the drywall that are damp to the touch or slightly bowing.

Damp drywall can also be a symptom of humidity inside of the walls caused by a leaking pipe inside and near the damp part of the drywall.

Discoloration of the drywall is also a telltale sign that you have excessive humidity somewhere in the area.

If you have a dark discoloration in the drywall, you can be fairly sure that you have a leaky pipe in that area.

You probably noticed the leak like this in the ceiling before.

5. The smell of mildew

Mold and mildew have a specific smell that is hard to miss.

Even when you don’t see any signs of mold growing on the walls or find any areas of dampness,

The smell of mildew is a surefire indication that there is mold growing somewhere.

Your nose always knows so follow your nose.

Excessive humidity in your house can cause mildew to grow in any dark corner it can find.

Which means it will not be obvious to your eyes. So trust your nose, if you smell mildew, you are smelling a symptom of high humidity.

6. Air conditioner doesn’t feel like it’s running

High humidity can make the air conditioner feel like it’s doing very little or nothing at All.

If you got the air conditioner on and you know the filters are clean and there’s nothing going on with the thermostat,

There’s a good chance that the humidity level is just at a point that it’s causing the AC to feel pointless.

An Air conditioner not feeling cold can definitely be a symptom of high humidity and excessive moisture in the air.

7. Excessive condensation coming from your air conditioner

If you are running a window air conditioner or using the air conditioner in your HVAC system and you notice a lot of condensation building up and dripping out of your unit,

You can bet that the humidity is high.

That is because these units convert the humidity in the air to condensation and funnel it outside.

Another way the air conditioner can provide you with a symptom of high humidity.

8. AC is set to “Fan on” instead of “Auto”

If your air conditioner is set to the fan on position, the humidity that is typically funneled out of the air conditioner doesn’t have enough time to evaporate and is blown back into the house through the vents.

This can also happen when your air conditioner unit is too big for your house.

If your unit is too big then it can cause rapid cycling which will also not give the humidity enough time to evaporate before it’s blown back into the house.

Improper settings and unit size of an air conditioner can cause and be a symptom of high humidity in the home.

Summary

Symptoms of high humidity in the home come in the form of condensation on the windows and mold growing on the walls.

Other symptoms that suggest does the humidity is too high inside of the home is an air conditioner but just doesn’t feel like it’s doing anything

or having a hard time breathing because of the amount of dust mites and mold spores traveling through the air because of the high level of moisture feeding them.

And if you are smelling the musty smell of mildew, you can bet there is mold growing somewhere around you.

Another symptom that you have high humidity in your home.

What to do?

Dehumidifier

A dehumidifier is a device that pulls humidity out of the air. Dehumidifiers come in all sizes and range from simple ” dump the water out yourself models” to modern Wi-Fi units that include humidistats with a pump and a hose attachment that make it super convenient to use.

Dry mode on the AC

There’s a good chance that the settings on your air conditioner include “dry mode”.

“Dry mode” is the dehumidifying function of a refrigerated air conditioning unit.

The AC itself

Though the humidity can get to a point that it makes the cool function of an air conditioner seem like it’s not doing anything,

Running the air conditioner, provided we are talking about a refrigerated AC, will still reduce the humidity inside of your home.

And many times, it’s not the temperature that’s making your home uncomfortable, just the humidity itself.

Ozone Generator Sizing Guide: What Size You Need for Smoke, Mold, Pets, or Skunk

Ozone Generator Sizing Guide: Find the Right Size for Any Room or Problem

Trying to figure out how powerful of an ozone machine you need? Whether you’re clearing out cigarette smoke, cooking odors, or something much worse, the right ozone generator size makes all the difference. Too small, and you’ll be running it for hours without results. Too large, and you could end up with lingering ozone long after the job is done.

This guide walks you through the numbers, the expectations, and the safety tips — so you can choose the right size with confidence.

Disclaimer: This guide is for informational use only. Never use an ozone generator in an occupied space. Always follow manufacturer instructions and allow time for ozone to dissipate before reentry.

Infographic showing how to calculate the required ozone output by multiplying room square footage by 0.5 to 1 mg/h."❓ How Strong of an Ozone Generator Do I Really Need?

Answer: Match output to your room size: about 1,000 mg/h per 100–150 sq ft. For stubborn odors like smoke or skunk, scale up or plan on multiple treatments.

Room Size Chart (with Output Range)

Room Type Square Footage Suggested Output
Closet, Bathroom, Small Bedroom 100–200 sq ft 1,000–3,000 mg/h
Living Room, Kitchen, Office 200–500 sq ft 3,000–7,000 mg/h
Basement, Garage, Open Concept Space 500–1,000+ sq ft 8,000–12,000+ mg/h

❓ Can I Use Too Much Ozone?

Answer: Yes — but the danger comes from reentering too soon. Larger generators release more ozone faster, but ozone naturally decays within 30–90 minutes. Always allow time and ventilate after treatment.
Because the machine’s output level affects how quickly the air becomes safe again, you can find more detailed re-entry timelines in our guide on how long to wait after using an ozone generator

Rule of Thumb: Wait 1 hour for every hour of ozone treatment — or 2 hours if using a high-output machine.
Timeline showing ozone treatment process from machine startup, ozone decay phase, to safe reentry with ventilation icon."

What Does Ozone Smell Like?

Dark blue safety graphic with warning symbol showing the safe ozone concentration limit of 0.08 ppm or below."
One of the first things people notice during or after a treatment is the distinct smell of ozone. It’s often described as sharp, clean, and slightly metallic — similar to chlorine, an electric spark, or the air after a lightning storm.

This smell is perfectly normal. It’s a sign that ozone was generated and is still active in the air. If you can still smell ozone, it’s not safe to reenter the room just yet. Let the space air out fully and wait until the scent fades to a barely noticeable level or disappears entirely.

Don’t worry if the smell lingers longer than expected. Factors like low ventilation, soft furnishings, or high output machines can extend the time it takes for ozone to fully break down. Just crack a window and use a fan to help speed it up.

❓ Can I Treat the Whole House at Once?

Answer: Technically yes, but it’s usually not the best approach. Treating one room at a time gives you better control and deeper results. If you do treat the whole house, keep interior doors open and use fans to help ozone circulate.

Pro Tip: Ozone doesn’t flow like air freshener — it needs time, circulation, and space to reach problem areas.
Visual safety guide showing icons for no people or pets, use a timer, post warning signs, ventilate the area, and follow instructions."

Ceiling Height Makes a Big Difference

Most ozone sizing guides only consider floor space — but ceiling height matters too. Why? Because ozone fills the entire volume of a room, not just the surface area. The more vertical space you have, the more ozone you’ll need to fill it effectively.

As a quick reference, multiply your room’s square footage by the ceiling height to get the total cubic feet. A 300 sq ft room with 8-foot ceilings = 2,400 cubic feet. But if that same room has 12-foot ceilings, you’re working with 3,600 cubic feet — 50% more airspace to treat.

Rule of thumb: If your ceilings are over 10 feet tall, increase your ozone output by 25–50%, or plan on longer treatment times. This ensures ozone can reach the upper corners of the room effectively.

Flat design showing recommended ozone treatment time with hourglass icon and the text 'About 30 minutes.'"Small vs Medium vs Large Ozone Generators: What to Expect

Ozone machines are rated in milligrams per hour (mg/h). That number tells you how much ozone the machine puts out — but it doesn’t always tell you what results you’ll get. Here’s what you can expect from each size:

🔸 Small Units: 1,000–3,000 mg/h

  • Best for: Closets, small bedrooms, cars, pantries
  • Room size: Up to 200 sq ft
  • Treatment time: 30–60 minutes
  • What to expect: Light odors removed in one session; stronger odors may require 2–3 cycles
  • Bonus: Great for small containers or odor-proof boxes (treat shoes, books, or clothes)

🔸 Medium Units: 3,000–7,000 mg/h

  • Best for: Bedrooms, kitchens, offices, mild smoke damage
  • Room size: 200–500 sq ft
  • Treatment time: 1–2 hours
  • What to expect: Handles most odors in one or two sessions; easy to carry and store
  • Common use: Landlords, car detailers, Airbnb hosts

🔸 Large Units: 8,000–12,000+ mg/h

  • Best for: Basements, open floorplans, large living rooms
  • Room size: 500–1,000+ sq ft
  • Treatment time: 2–4 hours (longer for severe odors)
  • What to expect: Strong ozone smell afterward; may need extra ventilation time
  • Caution: Overkill for small rooms — always follow wait-time safety instructions

Portable vs. Professional Ozone Generators

Not all ozone machines are built the same. While most consumer-grade units are marketed by their output — like 5,000 or 10,000 mg/h — there are important differences between portable models and commercial-grade machines.

Portable units are typically lightweight, made with plastic or thin aluminum casings, and designed for short cycles in single rooms or cars. These are great for DIY odor removal projects at home.
If you are ready to see which specific models we recommend for these types of home projects, you can read our full breakdown of the best ozone generators currently on the market.
Professional ozone generators tend to have metal housings, stronger internal fans, better heat sinks, and often include multi-stage timers, fan speed settings, and ozone plate controls. They’re built to withstand longer runtimes, and some are rated for treating very large spaces or entire buildings.

Also, be cautious with extremely cheap models — especially those sold by unfamiliar brands with questionable mg/h claims. Look for third-party reviews, real product specs, and a manufacturer that actually publishes safety documentation.

If you’re still unsure whether renting or purchasing is best for your situation, this guide explains when ozone machine rental is the right choice

❓ What Size Ozone Generator Should I Use for My Car?

Answer: A 3,000–5,000 mg/h unit is usually enough for cars, trucks, and RVs. Run it with windows up and a small fan inside to help circulate ozone through seats and vents. Most treatments take 30–60 minutes, but tough odors may require a second session.

Reminder: Never sit in the car during treatment — and air it out for at least 30 minutes after ozone use.

Match the Ozone Size to the Problem You’re Solving
Infographic showing recommended ozone generator sizes for various odor problems, including cigarette smoke, pet odor, mold, fire damage, car interiors, and skunk, with matching mg/h output ranges."

Room size is important — but so is the type of odor or contamination you’re dealing with. Here’s a quick guide:

🚬 Cigarette Smoke

  • Best size: 5,000–10,000 mg/h
  • Use notes: May need multiple treatments

🐾 Pet Odors

  • Best size: 3,000–5,000 mg/h
  • Use notes: Use in areas where pets sleep or mark

🦠 Moldy or Musty Smell

  • Best size: 5,000–10,000 mg/h
  • Use notes: For odor only — does not kill mold in walls or materials

🦨 Skunk Odor

  • Best size: 10,000–12,000+ mg/h
  • Use notes: May require multiple high-output treatments

🔥 Fire/Smoke Damage

  • Best size: 10,000–20,000 mg/h
  • Use notes: Use only for odor; not for cleanup or restoration

🚗 Cars, Vans, and RVs

  • Best size: 3,000–5,000 mg/h
  • Use notes: Short cycles with a fan inside help spread ozone

Ozone Works Best After You Clean the Source

Ozone is excellent at removing odors — but it can’t replace cleaning. Think of it as the final step after you’ve removed the source of the smell.

If you’re treating smoke odor, for example, ozone can neutralize the lingering particles in the air and surface fabrics. But it won’t remove sticky tar or nicotine residue left on walls or inside furniture. The same goes for pet odors soaked into carpet pads or mold behind drywall — if the source remains, the smell may return.
Remember, ozone’s size and power don’t make it a pest solution — even strong units can’t reach bed bugs. Here’s why.

Before using an ozone generator, always clean as much as you can first. Vacuum, wipe down surfaces, remove soft items if possible, and address any visible mold or soot. Ozone is most effective in a clean, dry, and sealed environment.

❓ Can I Run the Ozone Generator More Than Once?

Answer: Yes — and for stubborn odors, you’ll probably need to. It’s perfectly safe to run multiple ozone cycles as long as you allow time for the ozone to decay between treatments.

Tip: Run one cycle, wait 2–4 hours, ventilate, then repeat. You’ll get better results and keep it safe.

Dark blue safety graphic with warning symbol showing the safe ozone concentration limit of 0.08 ppm or below."Ozone Safety: What You Need to Know Before You Plug It In

✅ Do:

  • Leave the room completely during treatment
  • Post a warning sign on doors
  • Wait 1–2 hours after cycle ends
  • Use fans to help ventilation
  • Start small — you can repeat if needed

❌ Don’t:

  • Use ozone around people, pets, or plants
  • Use near fish tanks or sealed food
  • Run it in a shared space without notifying others
  • Assume “more ozone” means better results
  • Rush reentry — always allow time to air out

Important: Ozone machines are not medical devices or professional restoration tools. Always use in unoccupied spaces and follow safety guidelines carefully.

📚 Want to Go Deeper?

These guides cover ozone safety, deeper system strategies, and when to consider alternatives to ozone treatment.

Still wondering What ozone smells like? Learn why people describe ozone as smelling like chlorine, electricity, thunderstorms, and even burnt electronics.

Does HEPA Filters Remove Asbestos? Common Questions

Does HEPA Filters Remove Asbestos?

The answer Yes and No.

And asbestos air scrubber or air purifier uses HEPA filters but consumers are warned that an air purifier can have leaks that do not qualify it to be a proper asbestos abatement tool.

Professionals use HEPA as part of there bestest abatement process but as a homeowner the best HEPA asbestos air purifier should be left as a precautionary after the abatement is finished.


Asbestos is a scary subject as well as it should be.

Long-term exposure to asbestos can cause serious health problems including cancers like mesothelioma.

But since it is such a ominous subject that many people deal with, and there is a lot of misconceptions and questions people have when they think they have asbestos or have come in contact with it.

Avoid using paper mask as asbestos fibers or much too small for a paper mask to offer protection

We created a small hit list of common questions.

Does a HEPA Filter Remove Asbestos?

Yes a HEPA filter will remove asbestos. HEPA filters are engineered to capture particles as small as .3 microns.

Asbestos micron sizes or in the .7 to 90 length and size.

A HEPA filter for asbestos is usually found in the form of an asbestos respirator.

A HEPA respirator should always be used doing with asbestos dust.

Respirators with a p100 rating render the greatest amount of protection.

 

Does Asbestos stay in the air?

Asbestos can stay in the air up to 72 hours and longer when there are currants carrying it around.

Can you Vacuum Asbestos?

No you should never vacuum asbestos. Sweeping and vacuuming asbestos dust will only aggravate it and push it into the air stream where you can breathe it in.

Is Asbestos Dangerous When Wet?

Keeping asbestos wet is one way of keeping the particles stable but they do not enter the Airstream.

In fact asbestos when it is in water is not found to be dangerous and can even be swallowed without it becoming hazardous.

How long do you have to be exposed to asbestos for it to be harmful?

Low exposure to asbestos seldom causes disease. One brief Exposure does not cause a big risk.

But multiple brief exposures can add up to a significant amount of asbestos fiber being breathed.

Asbestos can be harmful to breathe in small amounts, and if you have been exposed to asbestos, it is best to tell your doctor before any breathing related issues arise.

There is clearly a difference between someone who has come into brief contact with it compared to someone who has worked with it in construction for a long time.

Long-term exposure to asbestos and pre-existing lung diseases as well as how long you were exposed and how much of it was in the air all have a factor and how harmful it can be.

Are Asbestos Risk Overblown?

Long-term exposure to asbestos causes lung disease and mesothelioma.
That’s about as serious as it gets. These diseases can significantly shorten your life span and cause your life to be a living hell dealing with the cancer.

Short-term risk may be considered by some to be overblown because of the majority of people who suffer from asbestos-related diseases we’re exposed too heavy amounts of asbestos dust for a long period Of time.

Remember that working with asbestos is not the only way you can be exposed to it. Whenever it is Disturbed, it poses a hazard. For this reason it is important to know are you have Building Products that use asbestos in your home.

Can you smell asbestos? Is asbestos odorless?

Asbestos does not have an odor.

Can you Taste Asbestos?

No asbestos does not have a taste either.

Can you See Asbestos?

Asbestos fibers or not visible to the naked eye.

Will Asbestos Make Your Skin Itch.

No asbestos will not make your skin itchy like fiberglass.

If you are dealing with an older home, looking for asbestos is as practical as considering the building materials used at the time.

For instance ceiling tiles were the rage back then but they were typically made out of asbestos materials.

As were vinyl floor tiles. Cement sheets were used for outdoor siding which also contained asbestos.

If you have a home that was built before the 1980s , there is a good chance that you have some materials that have asbestos in them. Having your home tested is a good ideal.

Should I Test for Asbestos?

Short answer, no. You should contact a professional if you think you have asbestos in your home. Remember that insurance will not cover the cost if you not go through the proper channels.

Popcorn Asbestos

If you have a popcorn ceiling that you believe with chance of containing asbestos, it is best to have it tested.

As stated before, doing your own test or remediation can cause you to be up a Creek with no paddle when it comes to getting help from your insurance company.

Most insurance will not cover any type of do it yourself asbestos testing or handiwork.

As long as asbestos is not disturbed, it is not dangerous.

An Asbestos ceiling can be sprayed with vinyl paint to keep it from crumbling.

It won’t change the look of the ceiling but it will help avoid the cost of having the ceiling completely removed by a professional.

If it’s safety issue where the ceiling is in danger of being scraped, a professional can place gypsum board over the asbestos ceiling to keep it from being disturbed and removing the dated look of the popcorn texture.

What Kind of Cancer Does Asbestos Cause?
1. Mesothelioma.
2. Ovarian Cancer
3. Laryngeal Cancer
4. Lung Cancerv

Can you get Mesothelioma from one exposure?

Asbestos cancer or mesothelioma occurs primarily in people who have had long term, high levels of exposure.

One exposure does not pose of developing Mesothelioma.

Asbestos on Shoes.

Getting asbestos on your shoes and clothing will provide a means of travel for the dust. Second hand exposure to asbestos can happen by the transfer of asbestos on your clothes and shoes.

The fears connected to asbestos come from the long-term heavy exposure because of the building materials that Carpenters and laymen were using daily
before the 1980s. But the fear of cancer should not concern you if you happened to come across asbestos. It takes much more than just a one-off incident.

Clothing and shoes are really not an issue anymore as for working with asbestos because companies are required to carry the proper protective wear. When you are done working, you simply leave the clothing behind.

Basement Air Conditioning: Window ACs, Mini-Splits, Portable ACs and More

Why Basement Air Conditioning Often Isn’t the Real Problem

Many people start looking for basement air conditioning because the basement feels damp, stuffy, or uncomfortable even though the temperature isn’t all that high.

In many cases, the real problem isn’t heat.

It’s humidity.

Why a Cool Basement Can Still Feel Uncomfortable

Basements are naturally cooler than the upper floors of a home because they are surrounded by soil and concrete.

Yet a basement can feel clammy at 68°F while the upstairs feels comfortable at 74°F.

That’s because humidity affects comfort just as much as temperature.

  • High humidity makes the air feel heavier.
  • Sweat evaporates more slowly.
  • Musty odors become more noticeable.
  • Mold growth becomes more likely.

The Stack Effect

Homes naturally pull air from lower levels and release it through upper levels.

This process, known as the stack effect, can draw humid outdoor air into the basement through small cracks around foundations, windows, and utility penetrations.

Even if the basement stays cool, moisture can continue building up.

Check Humidity Before Buying More Cooling

First Rule of Thumb.. Before investing your hard earned cash into in a larger air conditioner, check the humidity level of your basement with a hygrometer.

A good target is 45% to 50% relative humidity.

If humidity levels regularly exceed 60%, a dehumidifier may improve comfort more than additional cooling.

Basement cooling options showing why a window air conditioner does not fit small basement windows, with alternatives including a portable AC unit with vent hose, a ductless mini-split system, and a dehumidifier to control humidity

If a standard window air conditioner won’t fit your basement window, you still have several effective cooling options. Portable air conditioners, mini-splits, HVAC extensions, and dehumidifiers can all improve basement comfort depending on your layout and humidity levels.

The table below compares the most common basement cooling solutions.

Option Cost Installation Difficulty Best For
Dehumidifier $$ Easy Humid, damp, or musty basements
Portable Air Conditioner $$ Easy Small basements with limited window space
Mini Split Air Conditioner $$$$ Hard Finished basements and long-term comfort
Ventless Air Cooler $ Easy Very dry climates only
Existing HVAC System $$$ Medium Large finished basements
DIY Basement Cooling Project $$ Medium Small basement windows and budget projects

Tip: If your basement feels damp, muggy, or musty rather than hot, a dehumidifier may improve comfort more than adding another air conditioner.

Why Window AC Units Usually Don’t Work Well in Basements

There are a few reasons window air conditioners struggle in basement spaces:

  • Window size limitations: Most basement or hopper windows are too small to accommodate a standard window air conditioner.
  • Fire safety and egress concerns: Blocking the only basement window can interfere with emergency escape routes during a fire or other emergency.
  • Humidity problems: Basements are naturally prone to moisture issues, and cooling alone doesn’t always solve the damp, clammy feeling many homeowners experience.
  • Limited ventilation: A window air conditioner primarily recirculates indoor air, which can allow musty odors and moisture problems to persist.
  • Window well airflow restrictions: Many basement windows sit inside window wells that can trap hot exhaust air around the outside portion of the air conditioner. This restricted airflow can reduce efficiency and force the unit to work harder than intended.

Because of these factors, alternatives that focus on dehumidification and proper exhaust usually provide better long-term comfort.

A picture of a woman happy to understand the cooling options for her basement

So What Are the Cooling Options for a Basement?

If a window air conditioner isn’t practical for your basement, there are still several ways to cool the space. Some options are temporary and inexpensive, while others require a larger investment but provide better long-term comfort.

Let’s look at some of the most common basement cooling solutions and where each one works best.

Portable air conditioner installed in a basement with the exhaust hose vented through a hopper window.1. Portable Air Conditioners

A portable air conditioner is often the easiest alternative when a traditional basement window air conditioner isn’t practical. In many ways, portable AC units and window air conditioners work similarly. Both use refrigeration to cool the air and remove some moisture as part of the cooling process.

The biggest difference is that a portable air conditioner sits inside the room and uses an exhaust hose to vent heat outdoors. This makes portable units a good option for basements with small hopper windows that won’t accommodate a standard window air conditioner.

Most basement installations require some type of window modification or adapter to create a sealed opening for the exhaust hose. Fortunately, this is usually much easier than trying to install a full-size window AC unit in a narrow basement window.

Single-Hose vs. Dual-Hose Portable Air Conditioners

Not all portable air conditioners work the same way.

Most entry-level units use a single exhaust hose. These systems remove air from the room and exhaust it outdoors. The problem is that the air being exhausted has to be replaced from somewhere. In many basements, replacement air is pulled through foundation cracks, window gaps, and other small openings.

This creates what is known as negative pressure. Along with replacement air often comes additional humidity, which can make an already damp basement feel even more uncomfortable.

Dual-hose portable air conditioners use one hose to bring outdoor air into the unit and a second hose to exhaust it back outside. Because they don’t rely as heavily on conditioned room air, they tend to be more efficient and often perform better in basements with humidity issues.

Don’t Forget About Humidity

In many basements, humidity is actually a bigger comfort problem than temperature.

Because basements sit below ground level, they naturally stay cooler than most areas of the home. What often makes them uncomfortable is trapped moisture. Excess humidity can create musty odors, a clammy feeling, and conditions that encourage mold growth.

In some cases, removing moisture can improve comfort more than adding additional cooling. That’s why dehumidifiers, proper ventilation, and air conditioners that actively remove moisture are often recommended for basement spaces.

For many homeowners, a portable air conditioner provides a practical middle ground by offering both cooling and moisture removal without the installation costs associated with a mini-split system.

Mini split air conditioner installed in a finished basement.2. Mini Split Air Conditioners

A mini split air conditioner is one of the best long-term solutions for cooling a basement. Unlike a window air conditioner or portable AC, a mini split doesn’t require a window and can be installed almost anywhere there is an exterior wall.

A mini split system consists of an indoor air handler and an outdoor condenser connected by refrigerant lines. Because the noisy compressor remains outside, mini splits are usually much quieter than portable air conditioners and window units.

Another advantage is that most mini split systems provide both heating and cooling. This makes them a good choice for finished basements, home offices, game rooms, and other spaces that are used throughout the year.

While mini splits typically cost more than portable air conditioners, they are often more efficient and provide better overall comfort. Many homeowners consider them the closest thing to adding a dedicated HVAC system to the basement.

Installation requires a small hole through an exterior wall for the refrigerant lines and electrical connections. Some newer systems are designed for DIY installation, but many homeowners choose to have a professional handle the setup.

If you’re looking for a permanent basement cooling solution and don’t mind the higher upfront cost, a mini split system is often one of the most effective options available.

Evaporative cooler operating in a finished basement.3. Ventless Air Coolers

Ventless air coolers, also called evaporative coolers or swamp coolers, are sometimes promoted as an alternative to traditional air conditioning because they don’t require a window or exhaust hose.

While that sounds appealing, they are usually a poor choice for most basements.

Unlike traditional air conditioners, evaporative coolers work by adding moisture to the air. As water evaporates, the surrounding air becomes cooler.

This works well in hot, dry climates but creates problems in damp environments.

Since basements already struggle with high humidity, adding more moisture can make the space feel even more uncomfortable and may contribute to mold and mildew growth.

Another drawback is the need for a constant water supply. Depending on the model, this may mean frequent refilling or connecting the unit to a water source.

For these reasons, evaporative coolers are generally not recommended for basements in humid climates.

The exception would be a basement that already has excellent ventilation and good humidity control. In very dry regions, a ventless cooler may provide supplemental cooling at a lower operating cost than a traditional air conditioner.

For most homeowners, a portable air conditioner, mini split system, or dehumidifier will usually provide better results.
installing a new hvac zone in a basement

4. Extending an Existing HVAC System

If your home already has central heating and air conditioning, extending the existing HVAC system into the basement may be an option.

For finished basements, this can provide a cleaner appearance than portable air conditioners or window units while maintaining a consistent temperature throughout the home.

However, cooling a basement isn’t always as simple as adding a supply vent. Basements have different airflow, humidity, and temperature characteristics than the upper floors of a home.

Without proper planning, adding ductwork can create comfort problems elsewhere in the house or leave the basement feeling uncomfortable.

In some situations, an HVAC contractor may recommend creating a separate HVAC zone for the basement. This allows the basement temperature to be controlled independently from the rest of the home.

While this option is typically more expensive than a portable air conditioner, it can be a good solution for larger finished basements that are used regularly.
diy basement cooling

5. DIY basement window air conditioning

If you already have a window air conditioner that you were trying to figure out how to use in the basement, then you already know that just putting the air conditioner in the room with you is not going to work.

If you haven’t tried it, here is the reason.

Window air conditioners exhaust heat out the back side.
Just placing a window air conditioner in the room with you will create cooling out of the face, but create heat out of the back.

So basically canceling each other out.

But…
if you had a way of engineering something DIY style, you could use the window air conditioner as long as you had a way venting the heat expelled from the rear of the AC.

Here’s an example of a do-it-yourself window air conditioner turned mobile that could work in the basement as long as you have a hobbit window handy.

Here’s a more detailed look at it.

The whole idea is to take a large storage tub complete with lid and exhaust the heat from the air conditioner into the storage container which is ducted into the small Hobbit basement window.

Though it’s not the prettiest, it can be utilized and would work well for basements that are primarily used as shops, crafting rooms, so forth.

And one of the advantages is that refrigerated air conditioners, be it window or portable, dehumidify as part of the cooling process.

And since basements are notorious for high humidity, having a refrigerated air like a portable or a DIY window air conditioner can be very beneficial.

Dehumidifier removing excess moisture from a residential basement.6. Don’t Overlook the Dehumidifier

Before spending money on a new air conditioner, it may be worth asking a simple question:

Is the basement actually hot, or is it just humid?

Many basements stay naturally cool because they are surrounded by soil and concrete. The real problem is often excess moisture in the air.

High humidity can make a basement feel damp, sticky, and uncomfortable even when the temperature is only 68°F. It can also contribute to musty odors, mold growth, and poor indoor air quality.

In many cases, lowering the humidity level from 65% to 50% can make a basement feel noticeably more comfortable without adding any additional cooling.

A dehumidifier removes moisture from the air and is often one of the most effective ways to improve basement comfort. In fact, some homeowners find that a quality dehumidifier solves the problem without the need for additional air conditioning.

If your basement feels clammy rather than hot, consider checking the humidity level with a hygrometer before investing in a larger cooling system.

For most basements, a humidity level between 45% and 50% is considered ideal.

Frequently Asked Questions

Can you put a window air conditioner in a basement?

Yes, but basement windows are often too small for standard window air conditioners. Even if the unit fits, you should consider egress requirements, security concerns, and airflow restrictions caused by window wells.

What is the best way to cool a basement?

The best solution depends on the basement. Portable air conditioners, mini split systems, HVAC extensions, and dehumidifiers can all be effective depending on the amount of space, humidity level, and available windows.

Why does my basement feel humid at 68 degrees?

Humidity is often the cause. A basement can feel damp and uncomfortable even when temperatures are relatively cool. Checking the humidity level with a hygrometer can help determine whether moisture is the real problem.

Do I need a dehumidifier or an air conditioner in my basement?

If the basement feels clammy rather than hot, a dehumidifier may provide more comfort than additional cooling. Many basements benefit from humidity control before additional air conditioning is added.

Can a portable air conditioner be vented through a basement window?

Yes. Portable air conditioners are commonly vented through basement hopper windows using an adapter kit or custom-built insert designed to fit the window opening.

Are swamp coolers good for basements?

Usually not. Swamp coolers add moisture to the air, which can make humidity problems worse in many basements. They are generally better suited for hot, dry climates.

Final Thoughts

While a traditional window air conditioner can work in some basements, it isn’t always the best solution. Small windows, humidity problems, and ventilation concerns often make other options more practical.

Portable air conditioners, mini split systems, HVAC extensions, and dehumidifiers can all improve basement comfort depending on your situation. In many cases, reducing humidity may provide as much benefit as adding more cooling.

Do I Need a Humidifier or Dehumidifier for a Stuffy Nose?

pic of a little girl breathing a vicks stuffy nose inhaler
Stuffy Nose Solutions: Choosing Between a Humidifier and Dehumidifier

When dealing with a stuffy nose, the choice between a humidifier and a dehumidifier hinges on your home’s current humidity levels.

A humidifier is beneficial in adding moisture to the air when indoor humidity is below the optimal range of 40-60%, often during dry winter months or in arid climates.

Conversely, a dehumidifier is useful for reducing moisture in overly humid conditions, which can be common in hot, damp climates or during rainy seasons, to mitigate allergens like dust mites and mold that thrive in high humidity and can exacerbate nasal congestion.

Here’s a table to help you decide:

Condition Humidity Level Recommended Device Reason
Dry Indoor Air Below 40% Humidifier To add moisture and alleviate dryness-induced stuffiness
Excessively Humid Air Above 60% Dehumidifier To reduce moisture and control allergens causing congestion

Do you have a stuffy nose? Is Congestion stopping you from thinking great thoughts? Oh the humanity… or is it the humidity?

The humidity outside and inside seems to have a lot to do with a lot of things. But what things? That’s not always too clear.

Stuffy Nose Dilemma: To Humidify or Dehumidify?

It depends.

Is the humidity in your home too high or too low?

A humidifier is to add humidity to a room or space when the relative humidity is too low.

A dehumidifier extracts humidity from the air when the humidity level is too high.

Another way to put it..

Is it winter outside and the house is dried out from the heater being on?

Or is it hot and humid outside and you’ve got a frizzy hairdo to go with your stuffy nose?

Stuffy Noses can happen when the humidity is too high and when the humidity is too low.

Dry air can cause you to feel stopped up and humid air can also cause cold-like symptoms because of dust mites and mold spores, along with other allergens.

What Should the Humidity be Set at?

According to NIH “The majority of adverse health effects caused by relative humidity would be minimized by maintaining indoor levels between 40 and 60%”.

So if your hygrometer is sitting at 50%, the relative humidity in your home is good.

But if you’re below 40%, using a humidifier to add moisture back into the air is the device that will help you correct your humidity and hopefully get you breathing through your nose better again.

If the relative humidity according to your hygrometer is sitting above the 60% mark, then your stuffiness may be due to allergens and dust mites which can be found in the air, when the humidity is too high.

A picture of a dogs big noseKeeping your Humidity Copacetic (steady as she goes)

Humidity levels inside your home can often be corrected by doing a few things to keep the good in and stop the bad from getting in.

Excessive Humidity

Windows and doors are an easy place to start. Moisture can find its way indoors through the smallest of cracks. And when your windows have not been resealed for a long time, excessive humidity around the windows can cause the seals to warp and rot.

Ceiling of the windows with some caulking and weather stripping can help even out your relative humidity.

Extraction fans or another easy fix.

Those houses come equipped with extraction fans in the bathroom and kitchen and some even have them in the washroom.

Extraction fans are fairly inexpensive and can be put into the ceiling quickly.

Anytime you’re cooking with boiling water or taking a steamy shower or just washing the clothes, using your extraction fans will pull moisture out of the house and into the Attic.

Leaking pipes?

Other sources of humidity in the house can be coming from places or things more undesirable.

For instance if you have plumbing problems or a broken pipe that is leaking inside the house, you are going to be experiencing excessive humidity especially in the area where the pipe is broken.

Leaks not only cause humidity, they cause mold. And mold that has gone unchecked for very long can turn into a big problem fast.

And if you have mold allergies, you may have discovered why you were suffering with a stuffy nose in the process.

Water under the house.

Any water that gets underneath the house can cause humidification to rise from under the floor. This can also be a source of mold and affect your air quality to the point of suffering from allergy symptoms.

Sometimes water under the house can be corrected by stopping any type of ravine that has been maybe etched out by watering the grass. Putting a barrier in front of the water runoff will help it to keep from running beneath your home.

Crawl space encapsulation is a big process that entails putting a plastic barrier between the ground and your house.

Broken and stopped up gutters can also direct water to flow beneath the house.
Fixing these items can often keep the humidity down inside of your home.

Run the air conditioner.

Many times, we forget that the air conditioner works as a dehumidifier to reduce moisture in the air as it cools the air down.

Most modern air conditioners have a dehumidifier setting ready available so that you don’t have to have the cool setting running at the same time.

Basement Dampness

Basements tend to be damp and humid by nature. Since the walls are typically concrete that are built against the moist ground, moisture has a way of working itself into the basement through the concrete.

Sealing up any cracks in the concrete wall is a must to keep moisture out.

The excessive humidity in the basement makes it a less than desirable spot to hang out or sleep. The air quality in the basement can also be responsible for allergy symptoms.

Low Humidity Remedies

Some of the easiest low humidity remedies for your home can be found in the same place that you’re trying to keep the humidity out of in the hot and humid season.

Shower

One of the easiest ways to add some humidity back into your room is to take a long hot shower and leave the doors open. That will allow the steam to migrate into the adjoining rooms as well.

Taking more baths than showers?

Leaving the bathwater in the bath after you bathed will help humidify the area around the bathroom as well.

Dry air pulls humidity from anywhere I can. That’s why dry and cracking skin is such a huge symptom of low humidity.

Cups of water around the house.

Simply leaving some containers of water open around the house can help alleviate some of the dry air. But remember stagnant water can develop bacteria fairly quickly and cause other types of problems. So don’t fill up a 5 gallon bucket so you don’t have to mess with it later.

Boiling water.

This is an old trick I remember from growing up. Mom always had water simmering and boiling in the kitchen and on the heater vents that used to be part of the floor back when.

She often put Vicks and other essential oils in the water to disseminate throughout the house.

Leave the washroom door open.

This may be a little bit on the iffy side if you have any type of allergies to detergents that can make it into your airstream if you leave the washroom door open.

But if you don’t, leaving the washroom door open while you’re washing clothes can invite humidity into the surrounding area.

Leave the dishwasher.

Another one is as simple as leaving the bathwater. Let the dishwater sit after you’re done washing the pots and pans and let the water naturally condense into your Air.H

a man rubbing his poor stuffy noseRecap.

Should you use a humidifier or a dehumidifier when you have a stuffy nose?

The answer depends on whether humidity is too low or too high at the moment.

Low humidity can cause raw stuffy noses, where high humidity can be full of dust mites and bacteria that equates to having a stuffy nose.

A hygrometer is an inexpensive tool that can measure your humidity and tell you exactly or near exactly what your relative humidity is sitting at.

If it is below 40%, then your air is too dry and you need a humidifier to raise the moisture level.

If the humidity is above the 60% mark, then you need a dehumidifier to reduce the humidity.

And the humidifiers and dehumidifiers can be awesome tools, they are not always needed.

There are many things you can do around the house to lower and raise your humidity without purchasing any type of device.

Shutting the bathroom door or leaving the bathroom door open depending on the season is an easy way to add and diminish some of the humidity in the house.

Our humidifier guide answers questions you didn’t even know to ask.