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Kill!
Joined
Jul 8, 2009
Member Number
15
Messages
9,581
Loc
Gatesville, TX
Once you get to 100 masks, can you no longer breathe and then it's 100% effective? Hmm...
 
Common sense science? Like how a filter rated at being 95% effective to 3 micron doesn't nothing for something, lets say 0.06 micron? That type of science?
 
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