This Air Purifier Mistake Could Send Pollutants Back Into Your Home - CNET

As someone who relies on my air purifier to capture allergens, wildfire smoke, dust and more, the last thing I want is for it to spit pollutants back into my home. But that can actually happen.

“If the filter is not replaced regularly, the collected pollutants can build up and clog the filter. This leaves more pollutants in the air, and the dirty filter can release contaminants back into your home, making the air more polluted than if you didn’t use an air purifier at all,” says Dr. Karyi Coyle, a pulmonologist and assistant professor of medicine at New York Medical College.

I consulted health experts to learn more about the consequences of not replacing your air purifier’s filter.

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