n95 mask vs cigarette smoke Do cloth masks block particles? Heavy smoke from hundreds of

Heavy smoke from hundreds of Canadian wildfires is drifting south across the border into the U.S., turning overcast skies yellow and brown and threatening the health of those breathing it. The It is real smokey out here pals. If you have one, toss on an N 95 mask to keep yourself protected from microparticles in the air When Air Quality's Bad, Which Mask Should I Wear for Wildfire Smoke? KQED For Wildfire Safety, Only Particular Masks Guard Against Toxic Particulate Matter California Healthline

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