Bullshit.
http://files.fast.ai/papers/masks_lit_review.pdf
You seem to be a mask loving Karen
https://www.rcreader.com/commentary/masks-dont-work-covid-a-review-of-science-relevant-to-covide-19-social-policy
Please do continue to serve your master, the father of lies but dont even think of gaslighting me for calling out that masks are utter filth