Proper fit of face masks is more important than material, study suggests
Researchers studying the effectiveness of different types of face masks have found that in order to provide the best protection against COVID-19, the fit of a mask is as important, or more important, than the material it is made of.
from Latest Science News -- ScienceDaily https://ift.tt/375btI3
from Latest Science News -- ScienceDaily https://ift.tt/375btI3
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