quit being a dumb ass
Posted on: March 22, 2021 at 10:45:03 CT
Ace AU
Posts:
28227
Member For:
5.27 yrs
Level:
User
M.O.B. Votes:
109
(1) breath without a mask - breath and aerosol particles are unimpeded
(2) properly worn masks - breath and aerosol particles are impeded
Science