Healthy indoor air quality
How to protect your home & family from wildfire smoke
...N95 or KN95 respirator mask is your best defense, as it is designed to filter out at least 95% of airborne particles, including PM2.5 - but only if you wear it all the time, and cover your mouth and your nose, and pinch the metal part tight, and that includes you too Granny - (sorry, in-house joke). Simple cloth and fr...
