I see very few N95s around these days.
Tight fitting, it's a tough bastard to master. Seems you could subject yourself to too much CO2 if using it strictly for long. (Of course I haven't seen anyone passed out on the ground yet with an N95 mask on their face.) Interestingly, airborne communicable infection can be more easily acquired at high CO2 concentrations.
[Post edited by MikeVT85 at 05/20/2020 3:27PM]
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Posted: 05/20/2020 at 3:13PM