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  • Can I Run My Air Purifier and Humidifier Together at the Same Time?

    What do you do when you want to add moisture to indoor air and still filter it? Here’s how to use a humidifier together with an air purifier at the same time.

    Learn how to use your air purifier device in conjunction with a humidifier, so you can stay comfortable during dry air blasts without sacrificing indoor air quality.

    Whether you live in an arid climate year-round or you’re muscling through a blast of dry winter air, dealing with ultra-low humidity is no fun. Humidifiers can be a big help when you’re looking to add some moisture back to your indoor air, but it might leave you wondering—can using a steamy humidifier reduce the quality of your indoor air? Can you use a humidifier together with your air purifier? Here’s what you should know when your indoor air needs a little help from both an air purifier and humidifier.

    • Do humidifiers make my indoor air quality less clean?

      Humidifiers can be useful to combat dry skin, itchy sinuses and chapped lips caused by dry winter air.¹ However, it’s important to take care of your humidifier to ensure it doesn’t do more harm to your air than good. If you use water from the tap, the humidifier might add significant amounts of mineral particles into the air along with the moisture you’re looking for.² Using distilled water in ultrasonic or cool mist types of humidifiers can help mitigate the minerals.

      Similarly, a dirty humidifier may release mold and mildew particles into the air if it hasn’t been cleaned properly. Rinse your humidifier daily and wash it once a week using warm water and vinegar to remove mineral buildup. You can also use warm water with a small amount of bleach to kill any mold or mildew that might be growing inside.

      Can I use an air purifier and humidifier together at the same time?

      Air purifiers and humidifiers have very different functions, so you can use them simultaneously in the same room to add moisture and reduce unwanted particles. A dirty humidifier can add particulate matter to the air, but Filtrete™ True HEPA Filters can capture 99.97% of airborne particles*, including minerals and mold spores. This level of filtration is available for all Filtrete™ Air Purifiers.

      If you have a Filtrete™ Smart Air Purifier connected to the Filtrete™ Smart App, you may get an alert that your air quality has worsened, signaling that you should use both at the same time. Don’t convince yourself to turn one or the other off; cleaning moisturized air is better than breathing poor air quality.

      For best results, clean your humidifier, replace the filter in your air purifier regularly and pair your Smart Air Purifier to the Smart App.

      *As small as 0.3 microns from the air passing through the filter media. Initial efficiency value.


      1. MayoClinic.org: Humidifiers: Ease skin, breathing symptoms

      2. EPA.gov: Use and Care of Home Humidifiers (PDF, 32.4 KB)

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