Summary
Wearing a face mask is a vital measure to prevent the spread of COVID-19, even if you are fully vaccinated.
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The U.S. Centers for Disease Control and Prevention recommends wearing a well-fitted mask indoors in public.
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For maximum protection against COVID-19, wear a well-fitting N95 or KN95 face mask.
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These masks filter out 95 percent of aerosol particles.
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Doctors and public-health experts recommend putting aside fabric masks in favor of those that offer higher filtration like KN95s, KF94s, and N95s.
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According to
