Face masks can help slow the spread of coronavirus disease 2019 (COVID-19). Learn about mask types, which masks to use and ...
In a head-to-head comparison of masks worn by people with active COVID-19, the inexpensive 'duckbill' N95 came out on top, stopping 98% of COVID-19 particles in the breath of infected people from ...
A large, randomized study from Stanford (Calif.) Medicine and New Haven, Conn.-based Yale offers the strongest evidence yet that wearing surgical masks can reduce community spread of COVID-19. The ...