To avoid breathing wildfire smoke, it's important to have the right gear. Dust masks, bandanas and damp pieces of cloth won't adequately protect you from inhaling fine particulate matter like PM2.5.

Ash from wildfires looks like gray or white dust that is large enough to see (sand or larger) and visible in the air or on surfaces. It can contain toxins. AirNow.gov says to stay inside as much as ...

With wildfires raging up and down the state of California on Monday, smoke filled the air in many places, ash fell from the sky, and residents were once again left to wonder whether the air they were ...

According to several studies reported by Heat Map, people refuse to wear masks to protect against wildfire smoke. They are ...