COVID-19: Most homemade masks block large cough droplets, even as single layer, says study
SEPTEMBER 19, 2020 4:11:16 PM
While earlier studies have focussed on the transfer of tiny, nanoscale aerosol particles through masks, the researchers from the University of Illinois at Urbana-Champaign in the US said speaking, coughing, and sneezing generates larger droplets -- about one millimeter in diameter -- that can carry virus particles.
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