Does Wearing 2 Masks Protect You Better From COVID-19?

Look around, and you may notice more people donning two masks rather than just one. Slipping an extra mask over a primary face covering may be a tough sell for those of us who find masks a nuisance. But experts say doubling up can be a wise move. Raina MacIntyre, a biosecurity expert at the University of New South Wales in Sydney, has investigated mask effectiveness. MacIntyre told NPR recently…

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