Are there any safety tips I should follow when using a humidifier?

Are There Any Safety Tips I Should Follow When Using a Humidifier?

Are there any safety tips I should follow when using a humidifier?

Yes, following key safety precautions when using a humidifier is recommended to avoid potential hazards. Humidifiers work by increasing moisture levels in dry indoor air, which can provide relief for congestion, dry skin, allergies and more. However, excess moisture can also encourage mold growth and bacteria if the humidifier isn’t used and maintained properly. Practicing good humidifier hygiene and care allows you to benefit from the added humidity these appliances provide.

Place the humidifier carefully

One of the first safety steps is to choose an appropriate location for the humidifier. Avoid placing it directly on wood furnishings or hardwood floors, as the moisture output can cause warping, water stains or other damage over time. It’s better to use a waterproof pad or tray underneath the unit to catch any condensation drips or spills. Placing it up high, out of reach of children and pets can also reduce the chance of it getting knocked over.

The Levoit LV 6000S ultrasonic cool mist humidifier has a convenient remote so you can control humidity levels from across the room. This also allows you to place the unit somewhere safely out of the way.

Use clean water

Using clean water in your humidifier is strongly recommended. Tap water contains minerals and contaminants that can leave white dust residue on surfaces. Unclean water can also promote the growth of mold, fungi and bacteria within the tank and other humidifier components. This causes bad odors and potential health issues when released into the air.

Change the water daily, or every few days at minimum, to limit contamination. Fill the tank only with distilled or filtered water to avoid films and deposits. This also helps your humidifier last longer.

The Dreo Smart Humidifier monitors water purity and reminds you when it’s time to change the water.

Follow a cleaning routine

Regular cleaning and disinfecting is crucial for safe humidifier operation. Follow the manufacturer’s directions for properly cleaning the tank, wicks, filters and other parts. Take care to fully rinse away any cleaning solution residue that could get dispersed into the air later.

You should disinfect the tank at least once a week, or more often if you notice any odor or visible film. A bleach and water solution or vinegar soak are two common disinfecting methods. This kills mold, bacteria and other microorganisms trying to grow in stagnant water or on humidifier surfaces.

Cleaning tips

  • Rinse with clean water after disinfecting to prevent residue buildup
  • Allow parts to fully air dry before reassembling
  • Soak detachable wicks in disinfecting solution as well
  • Scrub off any mineral deposits or biofilm

The PureGuardian H5450BCA Ultrasonic Warm and Cool Mist Humidifier has a UV-C light that helps kill up to 99.9% of bacteria in the water tank.

Monitor humidity

Use a hygrometer or humidity monitor to keep track of moisture levels in the room. Ideal indoor relative humidity is 30-50%. Higher than that risks mold growth and condensation on windows or walls.

Run the humidifier only as needed to maintain humidity in the healthy range, and turn it off when the air feels sufficiently moist. Letting it run constantly can lead to over-humidification and associated issues.

The previously mentioned Dreo Smart Humidifier monitors room humidity and adjusts mist output automatically to maintain ideal moisture levels.

Exercise caution around children and pets

Humidifiers demand extra care when kids and pets are present. Place hot mist or steam models up and out of reach to avoid burns from hot steam. Cool mist options are safest around children.

Keep the power cord tucked away and don’t place the humidifier where it could be easily knocked over onto a child or pet. Supervise use and remind children not to touch the water or attempt to fill it themselves to prevent spills or contamination.

The PureGuardian Ultrasonic Humidifier has an optional night light, making it a safer choice for use in a child’s bedroom.

Look for safety certifications

When shopping for a humidifier model, look for ones certified by safety standards organizations like UL, ETL, CSA, or AHAM. Units displaying these marks have been independently tested for compliance with key electrical and performance safety metrics.

Carefully researching consumer reviews can also give insight on potential safety issues for certain models, like leaks, mold growth, overheating or fires. Selecting a humidifier with a solid reputation for safety can offer peace of mind.

Replace filters regularly

If your humidifier uses a filter, be diligent about changing it as often as recommended by the manufacturer. Clogged, old filters allow more minerals and microbes into the moisture vapor.

Mark your calendar for the ideal replacement interval. For example, replace humidifier filters every 1-2 months or after a specified number of runtime hours. Proper filter care is essential for safe operation.

Be aware of health risks

While humidifier use can provide comfort for many, it can also exacerbate respiratory issues for some. People with asthma, allergies, COPD or chronic bronchitis may experience aggravated symptoms from the moist vapor output. If any irritation occurs, stop using the humidifier.

Consult your doctor first before using a humidifier if you have a history of lung problems or allergies. Carefully monitor your comfort level, and be ready to adjust humidity output or discontinue use if needed.

Use other safety practices

Here are some additional tips for safe humidifier operation:

  • Empty tank and dry thoroughly each day to limit bacterial growth
  • Don’t add medications, oils or other solutions to the water
  • Situate away from electronics or valuables
  • Turn off and unplug when not in use for extended periods
  • Don’t block the mist outlet or obstruct air flow
  • Check for leaks, odd noises or other signs of malfunction
  • Follow all instructions regarding electrical use and connection

Maintain properly and use safely

By carefully choosing a location, using clean water, cleaning and disinfecting the tank and parts regularly, monitoring humidity output, taking precautions around children and health issues, replacing filters and following other safety tips, you can enjoy the benefits of a humidifier without undue risks.

Proper maintenance prevents stagnant water conditions that promote microbial growth. Careful filling and placement reduces the chances of spills and leaks. Monitoring ensures you don’t over-humidify and creates the right balance of moisture for comfort and relief without mold development.

Responsible humidifier habits allow you to breathe easy while benefiting from the added humidity these useful appliances provide.


Humidifiers can be a beneficial addition to help alleviate dry air discomforts, but they require diligent care and attention to safety. Regular cleaning of the tank, using pure water, maintaining proper humidity levels, cautious placement and operation, being aware of health interactions and following all guidelines for maintenance and electrical safety allows you to safely reap the advantages of a humidifier without worry. Putting in the modest effort to care for your humidifier properly will provide you seasons of soothing moisture and relief.

Published by

Dennis Reed

Dennis Reed Owner and Author @