"When all around you are ____"

I too failed to grok-to-fullness 'til the fourth, fifth masked-one passed.. (alas, as expected: utterly useless) re the fine-particle nasty-chemistry of The Fire(s) fallout.
(Dunno if the locals' 'masks'--unless hyper-expensive?--do much for microbe-level beasties, either)

Good Side: now your immune system-Beta is up-to-date: Win 3.1 :-)
..So you can go back! and ..be smug.