Coronavirus FAQs: Are 3 Masks Better Than 1? Will Mouthwash Keep You Safe?

Some criteria that make a safer fabric mask: tight weave fabric; multiple layers of fabric (ideally two layers and a filter); a tight seal and shape that cups to your face; and pleats or folds.

Readers are asking: Should we double up on masks for double the protection? Does gargling with mouthwash have an impact on the virus?

(Image credit: Connie Hanzhang Jin/NPR)

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