>Masks with exhalation vents protect you but not others A recent study debunks that assertion and shows that they protect others more than standard surgical ma

>Masks with exhalation vents protect you but not others A recent study debunks that assertion and shows that they protect others more than standard surgical mask and cloth face coverings. https://www.cdc.gov/niosh/docs/2021-107/pdfs/2021-107.pdf https://www.cdc.gov/niosh/docs/2021-107/pdfs/2021-107.pdf