4 ms·
100%, and even aside from cost I personally don't want another thing with batteries to manage. Elastomeric respirators can be even more comfortable with a bette
by hedgehog 5y ago
100%, and even aside from cost I personally don't want another thing with batteries to manage. Elastomeric respirators can be even more comfortable with a better seal, and cheaper over repeated wear. Probably what I'll do if I need to be outdoors in heavy smoke again this year.