This story is no longer being updated. Please visit kqed.org/wildfires for our latest wildfire-related stories and guides. These masks are used widely outside our ...

Though statewide coronavirus mask mandates have expired, many people have opted to continue wearing them to keep germs and other airborne viruses at bay. And with face masks now a common wardrobe ...

3M N95 particulate filtering face mask are seen at a store in East Palo Alto, California, United States on January 26, 2020. Topline: President Donald Trump on Monday said 3M will produce 55.5 million ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Face masks are no longer required in most indoor public spaces, but the rise of highly infectious ...

What is the difference between N95 masks and KN95 masks? Both masks help protect against COVID-19 and come in versions authorized by the Centers for Disease Control and Prevention (CDC) and the Food ...

SAN FRANCISCO — Air quality in parts of southern California near raging wildfires reached hazardous levels on Thursday, prompting local officials to close some schools and urge those with chronic ...

(KPIX 5) -- People have been lining up at hardware stores and other locations in the Bay Area to snap up face masks to minimize their intake of unhealthy air. But the N95 respirators, so called ...

One common concern about cloth face masks is the level of filtration they provide. The fabric’s mesh is often too open to filter out smaller particles such as smoke, dust, or viruses. A popular ...