People are taking precautions as multiple wildfires cause poor air quality across a wide swath of Los Angeles County.

If you’ve put your COVID face masks into retirement, it’s time to start wearing them again if you live in a large region of ...

If fitted and worn correctly, the N95 mask filters out 95% of particles larger than 0.3 microns, so it’s very efficient at keeping out the 2.5-micron particles in wildfire smoke, according to ...

“N95 masks provide the greatest risk reduction, but a good cloth mask with a center filtering layer does still reduce risk substantially.” That said, according to Ronaghi, smoke particles are ...

With levels of sooty air pollution far too high across swaths of the Los Angeles area, Dana Benton is sleeping with a mask on ... keeps her windows closed, air filter running on high and mostly ...

While the wildfires that swept across Los Angeles recently displaced over 180,000 people and consumed homes and businesses, the pervasive ...