Air Purifier vs. Dehumidifier

Air quality in the home or workplace can be impacted in many different ways.

Air pollution, humidity, as well as dry conditions all have an effect on the way people function and the quality of their health and life.

The market to improve and combat indoor air conditions is vast.

Products range from air purifiers, humidifiers, dehumidifiers, air conditioning, heating, diffusers, etc.

With so many type of products, it is hard to know what is what and what does what.

This article is about air purification and dehumidification and how they relate to each other.

And what type of products are suited for their different needs.

Air purifier vs. Dehumidifier

what is the difference between an air purifier and a dehumidifier?

An air purifier is a device that removes pollution from the air.

A dehumidifier is a device that removes humidity from the air.

Simple enough. But there are times when these two arenas lap over and cross into each others worlds.

For instance, excessive humidity is known to facilitate the growth of dust mites.

By using a dehumidifier to reduce the humidity in the air you can effectively reduce the population of dust mites in your house also.

Let me further explain. Humidity is one of the main places that dust mites get their nourishment.

When the humidity is high,  dust mites have a larger source of food available to  them. A larger food source equals a larger population.

Mold and mold spores are another example. Moisture is one of the main ingredients in the production and growth of mold.

By reducing the amount of humidity through the means of a dehumidifier you can reduce the amount of mold and the eventual production of mold spores in your air.

Humidity droplets are also known to behave like a container that is able to house indoor air pollutants and carry them further into the airstream.

Consider that fact.

That means that when you’re having trouble breathing because the humidity is high, it is not only because of the  excessive water content is making the air dense,

It’s also that you are  breathing the pollution that is contained in the humidity.

Once again, a dehumidifier can reduce indoor air pollution by reducing its capacity to travel through the home or office.

Can you use a dehumidifier as a air purifier?

Yes in many ways a dehumidifier will help reduce a number of indoor allergens,  namely dust mites and mold spores.

But unfortunately indoor air pollution is comprised of much more than mites and spores.

For other air quality problems like pollen, dander, and VOCs,
dehumidifiers will do little to nothing.

Not to mention that humidity is more of a seasonal problem but indoor air pollution continues every day all year.

Can you use an air purifier with a dehumidifier at the same time?

The same time? Not too well.

The sequence should be more like running the dehumidifier first and then running the air purifier afterwards.

The reason is excessive moisture in the air can reduce airflow through the dense HEPA  filter that your air purifier uses. Less ability to filter.

Also it is a known fact that carbon filters do not fare well with humidity at all.

You may have seen dehumidifiers with carbon filters.
That’s an unusual combination.

The same logic is applicable here though too. If you run your dehumidifier first and get the relative humidity to a good spot, then the carbon filter feature will work just fine.

But if you get the cart before the horse, the excessive humidity in the room will flatout make the carbon filter useless till it dries out.

Dehumidifier with ionizer?

What does the ionizer button on a dehumidifier do?

Ionizer button on a dehumidifier controls the ionizing function of the humidifier.

Ionizers are not a typical feature on a dehumidifier. A dehumidifier with ionizer would be considered a combination air cleaning / dehumidification device.

Ionizers clear the air by creating either negative ions or both positive and negative ions and omitting them into the air.

Negative ions attach themselves to positive ions, which would be considered the pollutants in the air, including the pollutants housed in the humidity droplets.

The result is they become too heavy to float and they fall to the surface or stick to the nearest wall.

Ionizers that emit both positive and negative ions have a instant polarization that traps any air pollution that gets in the way.

One benefit in using ionizers with dehumidifiers instead of the typical filtering air purifier, is that there is no filters involved to be impacted by the moisture in the air nor does the humidity have any real effect on the capacity of the ions to work.

The down side?

Do dehumidifiers create ozone?

Dehumidifiers do not create ozone unless it is a combination dehumidifier with an ionizer.

Ionizers do create small amounts of ozone and depending on the square footage versus the size of the ionizer, ozone can become a problem because it is a lung irritant.

Most people do not want to be in the same room with a dehumidifier when it is working because of the amount of heat it puts out.

And since ozone dissipates fairly quickly, the small amount of ozone that the ionizer generates should not have much effect on persons because of the likelihood of the room being uninhabited in the first place.

Should you buy a dehumidifier and air purifier combo?

My opinion is no. You can much more use out of a air purifier then you can a dehumidifier simply because a dehumidifier is a seasonal device were as an air purifier is useful every day of the week,  month, and year.

Also you don’t want to haul around a dehumidifier every time you want to put the air purifier somewhere different.

Summary.

Dehumidifiers can work with an air purifier and even work as an air purifier in many situations.

because excessive humidity can be a catalyst for air pollutants like dust mites and mold spores as well as house vocs,

By eliminating the high amount of humidity in the room you can eliminate the source of air quality problems at the same time.

but that does not mean that you have eliminated your need for an air purifier all together.

That’s because indoor air pollution is comprised of more than dust mites and mold spores.

Other air pollutants like pollen and dander will require a filter to capture them.

Some dehumidifiers come combined with an ionizer.

ionizers clean the air by making the particles in the air to heavy the float so that they fall out of the ambient air that you breathe.

Ionizers also do not require filters.
so they do not have any other problems that pleated filters can have with increased relative humidity.

Most people argue that ionizers create ozone and ozone is unacceptable.

But ozone in an unoccupied area is an excellent way to reduce airborne pollutants.

and since there’s not too many people who want to stay in the same room with a dehumidifier while it is running,

the combination of a dehumidifier and an ionizer makes a lot more sense then a lot of the combination air quality machines on the market.

Why Is The Dehumidifier Freezing Up?

What a pain in the keester.

The temperature is soaring.  The humidity is through the roof.
Now the Dehumidifier is icing over.

How does this even make sense?

 

 The middle of Summer. 100 Degrees and the AC and dehumidifier keep freezing over.

What gives?

Why is the dehumidifier freezing up?

 

1. The room temperature is too low.
2. Blockage. The air flow is interrupted.
3. Malfunctioning humidistat.
4. Fan is not working

Dehumidifiers and air conditioners work on the exact same principle.
If you have an air conditioner that is freezing up, then you can figure out, using the same logic, why your dehumidifier is freezing up.

Air conditioners and dehumidifiers both pull warm air over refrigerated coils that cause humidity in the air to turn to condensate.

In the case of an air conditioner it’s to exchange the warm air for cool air in the room.

In the case of a dehumidifier it is to reduce the moisture content of the air in the room.

1. The Room Temperature is too Low

 

Usually the most obvious reason a dehumidifier is freezing up is that the temperature in the room in which its operating is too low.

Dehumidifiers are meant to run at temperatures 65 degrees and over.

Imagine if the air that is being pulled over the refrigerated coils is hot, then the result is going to be condensation like on the outside of a glass of water sitting in the sun.

But if the air that is being pulled across the refrigeration is not hot, then the liquid in the air is not going to turn to condensation, it is going to turn to ice.

That doesn’t mean that the whole machine is going to be a block of ice, it just means that there may be areas in your coil system that are icy or even in some cases completely iced over.

The fix is easy. Turn the machine off and let it thaw out. Then make sure you’re not running your dehumidifier in cool air unless you bought a dehumidifier that is specifically made for winner air.

 

humidifier freezing

2. Blockage


Another thing that can cause your dehumidifier to freeze up is a blockage that is not allowing your air to flow freely across the refrigeration coils.

In other words you have something either clogging up your filter or you have the unit too close to the wall where the air cannot enter and exit easily. In some instances you may have debris actually get inside the machine and and prohibit the air from flowing through it.

It’s the same concept as running the dehumidifier into low of a temperature.

If the air that is over the refrigeration coils is not allowed to flow freely it will eventually freeze.

The fix for this is easy also. Clean the filter. Make sure the placement of the machine is not in an area where air cannot Flow in and out freely. And open it up to make sure that there is no trash or debris inside that could cause the air to be slowed.

Even though most problems with dehumidifiers and air conditioners freezing can be solved very easily using the methods we stated above, there are also going to be times when the problem is mechanical.

If you have a dehumidifier that it is freezing up and you have ensured that you’re not using it in a room that is too cold or that you have a blockage that is prohibiting the air from flowing through the machine easily,

3. Humidistat Malfunction


There is always a chance that your humidistat is not working.

The humidistat on a dehumidifier is basically the thermostat that tells the machine when to turn on and turn off based on the temperature in the room.

If the temperature in the room drops too much and the humidistat does not communicate with the machine to tell it to turn off then the machine will continue running when the air in the room is too cold and the refrigeration coils will freeze over.

The fix for this is not going to be as easy.
If you’re mechanically inclined, then you may be able to take a tester and test out the humidistat easily enough. And the part itself is held on by a couple of screws usually.

But if you’re not mechanically inclined then you’ll probably want to hire a technician to do the job for you.

4. Broken Fan


Another mechanical problem that can happen that would cause your dehumidifier to freeze over is the malfunctioning of the fan.

Related to the airflow being prohibited when you have a blockage is the function of the fan moving air through the machine evenly and often.

If the fan is not working then the air will not flow through the machine as designed and can end up lingering over the freezing refrigerated coils too long and cause your unit to freeze over.

The fix for replacing a fan or fan motor is the most difficult thing to fix when your dehumidifier is freezing over.

It is recommended that you call a technician to check and replace the fan motor if needed.

Depending on the price that you paid for the dehumidifier and the price of the part and the cost of the service, you might be looking at the cost of a new dehumidifier as well.

Summary

Why does the dehumidifier keep freezing up

Why does the dehumidifier keep freezing up?

There’s only a few things that can go wrong when a dehumidifier is freezing up.

A couple are very easy to deal with and a couple not so much.

Typically if the dehumidifier is freezing up it’s because the temperature in the room is too cold and instead of the air that is passing over the freezing refrigerated coils turning to condensation, it turns to ice.

And easy enough fix. Turn it off and let it thaw. Then make sure you don’t run it in a cool room below 65 degrees.

Similar to the first problem is airflow. If your filter is too clogged or if you have something in the way of the machine causing the air not to flow freely then the air cannot move easily across the refrigerator coils and the humidity inside of the air will freeze instead of turning to condensation.

Another easy fix. Remove the blockage, clean the filter, make sure the placement of the machine is not inhibited by a wall or any other thing.

The humidistat is a mechanical problem that if it goes out or is not working properly will keep your dehumidifier from turning off at the right time, allowing your dehumidifier to keep going when the air is too cold. Which causes freezing.

Replace the humidistat. Fairly easy job that even a novice technician can accomplish easily.

Lastly and related to the issues with air flow is the fan itself. If the fan has gone out, then they are going inside of the machine will not be forced out evenly and can eventually freeze.

This is the most difficult fix. It is also one that you’ll probably want to call a service man or get someone that is mechanically inclined to deal with.
Parts and labor might be comparable to buying a new machine at this point.

 

20 Ways to Lower the Humidity in Your House

Are you wondering how to lower the humidity in your house? You are not alone, as a lot of people feel a sense of discomfort and unhappiness when they deal with super high humidity levels. And that’s why it makes a lot of sense to find new, creative ways to lower home humidity as quickly as possible. With that in mind, here you have a few tips that will help in this situation.

1.Use a dehumidifier

A dehumidifier is one of the simplest tools you can use to keep the humidity levels as low as possible. It’s highly recommended to invest in a good dehumidifier since it allows you to ensure proper airflow circulation, all while eliminating any humidity from the air. Ideally you want to keep the unit away from furniture or any walls, unless it has air vent on the top.

2. Clean the downspouts and gutters

You want to do this because they will carry water away from your home. It’s a good idea because if you don’t do this, you will end up with high humidity levels in your home. Plus, it’s a good idea to restrict watering plants to bare necessities, just to be safe. The more restrictions you have in this situation, the better it will be as you do want to avoid complications.

3. Keep fresh-cut firewood outside

Why is this important? The most important aspect to consider is that freshly cut firewood has large amounts of water in it when you store it indoors. You want to leave the firewood outside so all that water will evaporate. If you don’t do that, then you will increase the humidity levels inside. Even if it doesn’t feel like a lot, in a situation like this, every little thing counts, so you might as well want to take that into consideration just to be safe.

4. Bring all your plants outside

Don’t keep plants indoors. They end up increasing the humidity levels and that’s the type of thing that you want to avoid. Ideally you want to keep them outside and you will be just fine. You could also keep them in a single room, however that room will have lots of humidity, so you really need to figure out what works for you here.

5. Keep the AC drip pans and drain lines clean

If you keep them clean and unobstructed, it will be a lot easier to avoid any humidity issues. The AC will remove all the humidity from your room. However, if the AC is not working properly, then you will have issues with this approach. You need patience to do this right, but it will be worth it.

6. Vent your clothes dryers outside

The reason you want to do that is that you end up generating a lot of humidity if you do this inside. There’s no real benefit coming with performing this activity inside anyway, so you have to figure out what works for you and how you can adapt to the entire process.

7.Add double-glazing to your windows

When you do that, you will have less humidity and that on its own can be a very important aspect to consider. Double-glazing really brings in front great results, and the best part is that you can avoid severe condensation without spending a whole lot of money. It’s the best of both worlds and you should totally check it out.

8.Aerate your attic and basement

Normally these are two of the places in your home where you will have a lot of moisture. If you start bringing in fresh air in there, you will start removing more and more moisture naturally. It’s one of the best approaches you can have and it does work really well if you do it right. We recommend you to test it out and perform this task often to avoid moisture and dampness in your home.

9. Use a fan in your kitchen

If you cook often, you will generate humidity in your kitchen. It makes a lot of sense to use a fan or anything that will bring in fresh air and push the humidity away too. This is an important aspect to think about, and it will offer you a very good experience every time. In a situation like this, you need to start easily, and this approach does make a lot of sense.

10. Open the fireplace damper

The fireplace damper allows you to push moisture away from your room. It’s a good way to lower the humidity naturally, and we believe that you should always consider it as one of the first things you can do when you deal with lots of humidity inside your home.

11. Open up the windows

This is simple, but it helps you push humidity away, all while bringing in dry air from outside. You have to figure out what approach works for you, and it all comes down to delivering the best results and having the right approach here.

12. Cover your food while cooking

Another interesting thing to do when you are cooking is to try and cover the food. This will keep the humidity under control. Alternatively, you could use a slow cooker, which brings pretty much the same experience and great results you would expect. It’s always a good idea to find alternative solutions, and it can be very well worth the effort all the time without any worries.
Lower your Humidity

13. Take cold, short showers

Hot showers will generate steam and that will obviously increase the humidity levels in your home. Not only that, but if those hot showers are long, then you are further increasing the humidity levels. You need to pay a lot of attention to this, because the more you take hot showers, the more humidity you are generating within the entire home.

14.Replace the carpet if it’s a model that retains moisture

Some types of carpets like the fluffy or very thick ones tend to retain a lot of moisture. They will also end up capturing dust mites and bacteria. It makes a lot of sense to replace your carpets with simpler ones. Make sure that you go with carpets that are not going to retain any moisture. And if you do that properly, it will be more than ok.

15.Add wrap or tubular insulation

Insulating tubing works great for the cold water pipes. It will help decrease sweating, and the best part is that you will have less humidity in your home. Even if it seems like a simple thing to do, it will make quite the difference.

16. Repair the door and window frames

When you have issues with the window and door frames, the first thing you want to do is to repair them. These frames can bring in moisture into your home, and that’s the last thing you want to have. Even some simple repairs can make quite the difference, and all you need is to give these a try, it will be well worth it in the end.

17.Insulate the crawl spaces

The best method you can use for insulating crawl spaces is through using a plastic vapor barrier. This is not that hard to do actually, and it will bring in front some pretty impressive results. The idea is to know how to perform proper insulation, and if you do it right, it will be a very good experience.

18. Waterproof the concrete basement walls

Waterproofing these walls will be a major way to deal with excess humidity. Most of the time concrete walls will bring in humidity to your home. That’s why waterproofing them is so important, and you should treat this as a priority to avoid any possible problems.

19. Treat the foundation with Hydroclay

Hydroclay is known for waterproofing tunnels. It’s a water-absorbing clay, and it will seal the basement where you have water infiltrations. Waterproofing your foundation with this will make quite the difference, and it will help you keep your home safe. Plus, you get to deal with humidity the right way, and that on its own can deliver quite the difference.

20. Vinyl wallcovering

Using vinyl wallcovering can be a very good idea. The trick here is that this type of wallcovering will help trap the moisture and basically keep it out. If you ignore this, it will lead to mold growth. So that’s certainly something to keep in mind.

Conclusion

It’s very important to find great, creative ways to keep the humidity levels as low as possible within the entire home. If you have low humidity levels within your home, you will breathe better, your skin will feel better, and you will have a great sense of well being. It’s important to take all of this into consideration, and the results can be very good every time. If you still have high humidity levels within your home, it’s a very good idea to hire a professional and solve this issue!