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Monday, November 2, 2026

Some portable air cleaners generate chemicals such as ozone, formaldehyde and hydroxyl radicals to kill microbes. ArtistGNDphotography/E+ via Getty Images

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Most air cleaning devices have not been tested on people −...

Staff Writer - August 20, 2025

Amiran Baduashvili, University of Colorado Anschutz Medical Campus and Lisa Bero, University of Colorado Anschutz Medical Campus Portable air...