On masks, anyone not under the sway of a moral panic immediately realized they were useless. (1) Respiratory viruses spread via smoke-like aerosols. (2) It takes only a few hundred virus particles breathed in to get infected, but a minute of talking wafts out about a million particles.
Why are they intent on believing in masks?
Why are they intent on believing in masks?
Why are they intent on believing in masks?
On masks, anyone not under the sway of a moral panic immediately realized they were useless. (1) Respiratory viruses spread via smoke-like aerosols. (2) It takes only a few hundred virus particles breathed in to get infected, but a minute of talking wafts out about a million particles.