Name: See how layered masks affect spread of Covid-19
Uploaded: 2020-07-24T01:27:11+02:00
Duration: 56 s
Description: <a href="http://www.cnn.com/2020/07/23/health/covid-mask-layers-wellness/index.html" target="_blank">Australian researchers</a> tested one, two and three layer masks and found two and three layers best for protection against Covid-19. Video is courtesy of the journal Thorax.

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24 jul 2020 bij CNN

Gemist: See how layered masks affect spread of Covid-19

Australian researchers tested one, two and three layer masks and found two and three layers best for protection against Covid-19. Video is courtesy of the journal Thorax.

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Gemist: See how layered masks affect spread of Covid-19

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