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Ybookofjoe ·
Cloth masks do protect the wearer
172 points187 comments
Yfortran77 ·
I had Covid-19, and these are the things nobody tells you
170 points177 comments
Ysimpleflyong ·
American Airlines bans masks with exhaust valves and vents
63 points106 comments
Yerohead ·
Researchers created a test to determine which masks are the least effective
6 points1 comments
Ypseudolus ·
Study of Face Masks Finds One Type That's Worse Than No Mask at All
4 points2 comments