What is better: face shield or face mask?
faculty discussion on the issue can be found here:
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Here more information:
‘Only those with plastic visors were infected’: Swiss government warns against face shields
July 15, 2020
Face Mask vs Face Shield: Which Is More Effective Against Coronavirus?
Is a Face Shield Better Protection Against the Coronavirus Than a Face Mask?
May 28, 2020
Why Aren’t Face Shields More Popular in California?
June 29, 2020