@mavica yeah, KN95 is the chinese test spec, which is mostly the same but very slightly different pressure drop requirements
still the same effectiveness though
@mavica also us in europe have FFP2, AS/NZ has P2, Korea has "1st Class", and Japan has DS
'cause fuck ISO or something I guess
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@mavica also us in europe have FFP2, AS/NZ has P2, Korea has "1st Class", and Japan has DS
'cause fuck ISO or something I guess