they are still more effective than no mask at reducing the spread of airborne particles from the wearer.
Yes, but the wearer has it on their chin.
The theoretical effectiveness of masks used in best practice and the actual effectiveness of actual practices are often miles apart.
I'm not anti-mask at all but from a public policy perspective the overall effect was meh.
A place for majestic STEMLORD peacocking, as well as memes about the realities of working in a lab.
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Yes, but the wearer has it on their chin.
The theoretical effectiveness of masks used in best practice and the actual effectiveness of actual practices are often miles apart.
I'm not anti-mask at all but from a public policy perspective the overall effect was meh.