Where does the face mask come from?

In Asia, it has long been part of everyday life. But where does the face mask come from, why was it invented in the first place, and how does it actually work? Author: 3SAT/Nano/Rocket film/Andreas Gust/Konstantin Fuchs Translation and dubbing: alugha Click here to see more videos: https://alugha.com/TerraX

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