The virus that causes COVID-19 spreads mainly through the air when a person coughs, sneezes, sings, talks or breathes. Virus particles can drift in the air and be inhaled, especially in crowded places ...

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.

(NewsNation) — Los Angeles County residents affected by the wildfires that began burning this week are advised to wear the correct masks to protect themselves against harmful smoke. Health experts ...