How high filtration masks slow spread of COVID-19, impact pollution
[ad_1] Ohio University recently announced its change to masking requirements, encouraging the use of surgical, KN95, N95 or KF94 masks, to help slow the spread of COVID-19, but the decision comes with both pros and cons. James Gaskell, health commissioner at the Athens City-County Health Department, said the N95 and KN95 are the “golden standard” […]
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