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In Reply to: OK - yes I wear a mask when I'm out in public. . . posted by Chris from Lafayette on September 10, 2021 at 11:45:47:
Test particles for filter efficiency test:
NaCl aerosol - 75 +/- 20 nm. Standard deviation not exceeding 1.86.
I have seen data showing exhaled cigarette smoke to have significantly small particles.
Gsquared
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Follow Ups
- RE: OK - yes I wear a mask when I'm out in public. . . - G Squared 14:03:44 09/10/21 (1)
- Thanks, G Squared! - and everyone else who responded! [nt] - Chris from Lafayette 16:10:12 09/10/21 (0)