FWIW, now that N95 masks aren't hard to get, I bought some a few months ago and holy crap they're so much better than the KN95s I had to use during COVID. I basically went maskless at times because the KN95 mask just leaked so much that I couldn't wear them. No matter how well I adjusted the metal nose bar, air leaked up when I breathed and it "tickled" my eyes so much I just stopped wearing them. I have since stockpiled a few hundred 3M N95s just in case.