Thursday, May 12, 2022

Fit-tested N95 masks combined with portable HEPA filtration can protect against high aerosolized viral loads over prolonged periods at close range.

 https://pdf.manuscriptpro.com/search/Abstract~35535021/1/3e3c5c02/Fit-tested-N95-masks-combined-with-portable-HEPA-filtration-can-protect-against-high-aerosolized-viral-loads-over-prolonged-periods-at-close-range.

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