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Mask Safety Update

Face Shields and Valved Masks Offer More Comfort but Less Protection

"Face shields and valved masks — two options many people find more comfortable than cloth face coverings — appear to be less effective at blocking viral particles than regular masks, a new study shows.

The Centers for Disease Control and Prevention had already stated that clear plastic face shields and masks equipped with vents or valves are not recommended, because of concerns that they don’t adequately block viral particles." New York Times Sept 1, 2020
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