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coronavirus covid19 policy aerosol aerosolization cough dispersion droplets facemasks filtering particles sneeze
Droplet larger than aerosols, when exhaled (at velocity of <1m/s), evaporate or fall to the ground
aerosols, when ... #Aerosol #droplets ... #facemasks #policy ... #covid19 #coronavirus ... #distance #dispersion
Filtering effect for small droplets (aerosols) by various masks; home-made of tea cloth, surgical mask (3M
effect for small droplets ... (aerosols) by various ... et al 2007) #Facemask ... #public #policy ... particles #COVID19 #coronavirus
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