A cheap, do-it-yourself air purifier is powerful enough to effectively protect a home from free-floating flu and COVID-19 viruses, according to test results from the U.S. Environmental Protection ...

Building a Corsi-Rosenthal box portable air filter comes down to duct-taping together a set of furnace filters and a box fan. Douglas Hannah, CC BY-ND One afternoon, a dozen Arizona State University ...

One afternoon, a dozen Arizona State University students gathered to spend the morning cutting cardboard, taping fans, and assembling filters in an effort to build 125 portable air purifiers for local ...

Eric Schildge is terrified to go back to school in a few weeks. An 8th grade English teacher in Newburyport, the fear of in-person learning during a pandemic is familiar to him. He was in the ...

New York, and other major cities on the eastern seaboard are currently blanketed in smoke from a massive outbreak of wildfires in Canada. Air quality levels are reaching their worst ever recorded ...

That "HEPA" label on your air purifier might not mean what you think it does, and the difference actually matters.

Covid is not going away for the foreseeable future. Vaccination, rapid tests and appropriate masking are important ways to protect against getting sick and spreading the virus. So is better indoor air ...

The Levoit Core 300-P is the number one best-selling HEPA air purifier on Amazon, with over 107,000 reviews.