3 ms·
Once the AQI exceeds 300 or so, I would run an air purifier at home (keeping the windows closed) and wear an N95 mask whenever I venture outdoors. Air filtrati
by hollerith 2y ago
Once the AQI exceeds 300 or so, I would run an air purifier at home (keeping the windows closed) and wear an N95 mask whenever I venture outdoors.
Air filtration works very well for smoke (and other particulates).