N95 masks have proven to be effective. Surgical masks and cloth masks have not proven to be effective. https://www.city-journal.org/do-masks-work-a-review-of-

N95 masks have proven to be effective. Surgical masks and cloth masks have not proven to be effective. https://www.city-journal.org/do-masks-work-a-review-of-the-evidence https://www.city-journal.org/do-masks-work-a-review-of-the-e...