Study: Face Shields Not a Good Mask Substitute
The shields, which sit away from the face and have gaps at the bottom and sides, would allow many more droplets to escape if the wearer coughed or sneezed.
from WebMD Health https://ift.tt/34SRKuM
The shields, which sit away from the face and have gaps at the bottom and sides, would allow many more droplets to escape if the wearer coughed or sneezed.
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