Masks block 99.9% of large COVID-linked droplets: study
Marlowe Hood, Agence France-Presse
Posted at Dec 23 11:06 PM
A woman standing two meters from a coughing man without a mask will be exposed to 10,000 times more such droplets than if he were wearing one, even if he is only 50 centimeters away, they reported in the journal Royal Society Open Science.
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