How effective are face shields against Covid-19?

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DChang
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Joined: Mon Aug 03, 2020 9:49 pm

How effective are face shields against Covid-19?

Post by DChang »

When watching people walk around with face shields, I wonder if it's really an effective way to stop Covid-19. If one cough is able to send droplets down 3 isles in a super market, what does the shield really do?
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