What is already known about this topic? Face masks or respirators (N95/KN95s) effectively filter virus-sized particles in laboratory settings. The real-world effectiveness of face coverings to prevent ...
Wearing a mask is one way to reduce the spread of COVID-19. There are many types, including surgical masks, cloth masks, and respirators. SARS-CoV-2, the virus that causes COVID-19, usually transmits ...
There can be no doubt that anybody who has lived through the unprecedented year of 2020 will have become oddly acquainted with face coverings. As we explore the “new normal,” masks have become ...
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