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 ...

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WORLD. A DAY AT THE BEACH. WHAT DO YOU MAKE OF THE SMOKE TODAY? OH, IT’S KIND OF BAD. CLOUDY AND YOU CAN’T SEE NOTHING TOO MUCH. CAME WITH A WARNING TUESDAY. STATE AND LOCAL HEALTH EXPERTS ASKING ...

With fires raging on the West Coast, air purifiers are quickly going out of stock. Polluted air and smoke from fires can have serious adverse health effects and irritate the sinuses. These devices ...

This is a developing story. For the latest local updates head to LAist.com and sign up for breaking news alerts. Interest in air filters and purifiers is spiking in Southern California, including ...