Here's some info about N95 specific materials. https://www.npr.org/sections/goatsandsoda/2020/03/16/814929294/covid-19-has-caused-a-shortage-of-face-masks-but-

Here's some info about N95 specific materials. https://www.npr.org/sections/goatsandsoda/2020/03/16/814929294/covid-19-has-caused-a-shortage-of-face-masks-but-theyre-surprisingly-hard-to-mak https://www.npr.org/sections/goatsandsoda/2020/03/16/8149292... N95 is a high standard. N99 higher still. (Why not adopt that then?) There are also other mitigation efforts available not as good as N95 that are massively better than nothing and which are also attainable. Insinuating as you have that only N95 is acceptable and nothing else whatsoever is acceptable means that millions will die in your universe since N95 is in the actual universe we live in unavailable at present. The perfect is the enemy of the good. But hey let's hold out for that perfection and then watch as the world incinerates.