Mask’s fit may determine how well it protects against COVID-19

Mask’s fit may determine how well it protects against COVID-19

Researchers found that wearing a medical procedure mask snugly beneath a cloth mask nearly doubled the effectiveness of filtering out particles the size of SARS-CoV-2, compared with wearing just one mask.They said the elimination of any gaps — rather than simply adding layers of materials — is the reason this approach works better.The CDC has previously recommended double masking to protect against COVID-19. However, the study that led to that conclusion was “limited” in the types and combinations of masks that were tested, according to Emily Sickbert-Bennett, PhD,Read More

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