this post was submitted on 15 Jan 2024
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[–] Bassman1805 9 points 9 months ago* (last edited 9 months ago)

Yeah, it catches (lots of but not all) aerosolized saliva from the wearer's mouth, which means a carrier is putting less viruses into the air. It's far less effective the other way: stopping viruses in the air getting into your lungs, but it's slightly better than nothing.

So, if someone feels sick but cannot miss work, this allows them to lower the risk they pose to others near them.