I was using them to clean my coop (dust from Sweet PDZ aka zeolite) so I had a nice stash of P95s when the pandemic hit. I almost put one on yesterday after the front went through because the pollen was being stirred up so much.
Decent recovery with ADA today. Went from being in the red the morning to in the green.
In other news, NH is down to 513 active COVID cases after just going under 1000 for the first time since last fall.
Sometimes those thin mid/upper level decks make it worse. Plenty of shortwave rad makes in through, but the longwave IR gets redirected back down to us.
Pretty strong correlation between essential metal deficiency and COVID severity. Get your selenium and zinc.
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8071197/