How Much Protection Does Mask Have vs. PPE
3 years ago
Stephen breaks down the definition of PPE (personal protective equipment) and masks. He also discusses proper use, fitting, and effectiveness of both.
I would never believe that a simply review of the literature on gaps in masks would get this video struck from YouTube after 5,000 views in ~ 3 days. Apparently no review on the effectiveness of masks allowed! - Stephen Petty
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