Why we wear masks—and the N95 is a good one, Part 2

from Great Moments In Science · host Australian Broadcasting Corporation

One might imagine that face masks work because the multiple layers will stop a virus getting through. But no, that's not it—they use a high-tech 'melt-blown' material, developed from a technique first noticed in volcano eruptions.Host: Dr Karl KruszelnickiProducer: Diane Dean

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This episode was published on November 29, 2022.

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