O. Hancock 
"[@BigBuggyBastage":](/images/2298564#comment_8954326
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The air purifier has a true HEPA filter, activated charcoal, an ionizing function (but somehow doesn't produce any ozone), and another layer before the HEPA layer that can be cleaned/washed, extending the life of the filter to a good few months or so.
My gas mask filters are what I could find. 1 is a pretty new Polish FP-5 NBC/CBRN filter, which to my knowledge has a HEPA filter, activated charcoal, and another particulate layer. It covers the vast majority of chemicals, nucleotides, and biological threats. another other is an older 90s FP-5 filter (cross your fingers), and the 3rd is a Scott pro 2000 filter with p100 particulate filtration (HEPA I believe) and other layers that cover_*some_* vapors. I've heard very conflicting things on whether or not SARS-CoV-2 can travel in vapors and whether or not the possibility of it getting through the HEPA filter is substantial enough that activated charcoal helps. Some people swear by it though, and being that I have to make due with my Warsaw PACT GOST threaded masks instead of NATO STANAG, there are very few options for filters I can use in the first place without just bodging them on there really tight and possibly damaging my masks. (One nice thing is that Scott Pro 2000 filters apparently use 40mm DIN and not 40mm NATO STANAG threads. The DIN threads are more similar to normalized RD40 threads than they are to pure NATO. Both normalized RD40 and 40mm DIN threads can supposedly fit either GOST or NATO masks, so I should be covered.
Beware of sellers though, who label NATO filters as RD40, GOST filters as NATO, NATO filters as GOST, etc. or who try to tell you that filters don't expire, or that old soviet-era filters don't have asbestos. They've been proven wrong in laboratories multiple times. Shitty sellers like that put profits over people, and they should be reported or sued if possible.
Penis
The air purifier has a true HEPA filter, activated charcoal, an ionizing function (but somehow doesn't produce any ozone), and another layer before the HEPA layer that can be cleaned/washed, extending the life of the filter to a good few months or so.
My gas mask filters are what I could find. 1 is a pretty new Polish FP-5 NBC/CBRN filter, which to my knowledge has a HEPA filter, activated charcoal, and another particulate layer. It covers the vast majority of chemicals, nucleotides, and biological threats. another other is an older 90s FP-5 filter (cross your fingers), and the 3rd is a Scott pro 2000 filter with p100 particulate filtration (HEPA I believe) and other layers that cover
Beware of sellers though, who label NATO filters as RD40, GOST filters as NATO, NATO filters as GOST, etc. or who try to tell you that filters don't expire, or that old soviet-era filters don't have asbestos. They've been proven wrong in laboratories multiple times. Shitty sellers like that put profits over people, and they should be reported or sued if possible.