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>"...outward particle emission rates..." That's outward transmission when the wearer is already infected, which has nothing to do with mask protection of the u
by DrScump 5y ago
>"...outward particle emission rates..."
That's outward transmission when the wearer is already infected, which has nothing to do with mask protection of the uninfected.
- jacquesm 5y agoOf course it does: if the recipient is uninfected, and if they are already infected then it doesn't matter.