Science
Humidity in breath makes cotton masks more effective at slowing the spread of COVID-19 – Science Codex
Researchers have come up with a better way to test which fabrics work best for masks that are meant to slow the spread of COVID-19. By testing those fabrics under conditions that mimic the humidity of a person’s breath, the researchers have obtained measurements that more accurately reflect how the fabrics perform when worn by a living, breathing person.
The new measurements show that under humid conditions, the filtration efficiency — a measure of how well a material captures particles — increased…
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