NEW YORK (AP) — Social media users are sharing a surprisingly effective way to protect yourself indoors from the toxic wildfire smoke blanketing much of the East Coast: a box fan, four air filters and ...

After wildfire smoke and the COVID-19 pandemic caused a surge in demand for air purifiers, which can be expensive or out-of-stock, the “Corsi-Rosenthal” box was born. The simple, inexpensive device is ...

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. NEW YORK (AP) — Social media users are ...