Knowing which mask is best to prevent person-to-person transmission of the COVID-19 coronavirus is still an open question for most, but slow-motion video shared on YouTube early in July provides a visual basis to judge how best to keep safe amid the global pandemic.

Professor Joe Hanson of the YouTube channel “It’s Okay To Be Smart” released a video earlier in July, reviewing the basics of why people should wear masks — in a visual review and primer and recent studies on the effectiveness of masks to prevent the spread of the COVID-19 coronavirus.
– PUB DATE: 7/14/2020 12:00:00 AM – SOURCE: Interesting Engineering
Source: SEAFC National Fire News

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