Face mask: Tightly woven double layer of cotton is recommended.
Answered 6/14/2020
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Fabric masks are no longer recommended to help protect oneself from being infected with COVID-19. Wear a well fitting KN95 or N95 or medical grade surgical mask when in crowds and with people whose vaccination status is unknown; physically distance from others. You can wear a cloth mask over the ones mentioned to make those fit better, if your cloth mask fits you better.
Answered 2/6/2022
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