How safe are you wearing a mask? Depends on the type, as well as what an infected person is wearing.
Fascinating data, and also concerning. I think I made the right decision to drop my in person class this term.
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@BlueStateBabe
I'd say over 90% of my students wear cloth masks everyday, and most are not well fitted. You'd like to say "it's better than nothing," but it might not be.
Glad to see this chart assumes 10% leakage. Fit is so important, and but always the easiest thing to find.
Here's a source with tests for thousands of N95, KN95, and KF94 masks measured for filtration and breathability:
https://counter.social/@voltronic/107606248990475207