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Forum » Study shows N95 masks near-perfect at blocking escape of airborne COVID-19
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Thread: Study shows N95 masks near-perfect at blocking escape of airborne COVID-19

post 1701828381 06-01-2024, 06:32 AM
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Study shows N95 masks near-perfect at blocking escape of airborne COVID-19

Relative efficacy of masks and respirators as source control for viral aerosol shedding from people infected with SARS-CoV-2: a controlled human exhaled breath aerosol experimental study

https://www.thelancet.com/journals/e...192-0/fulltext

Findings

All masks and respirators significantly reduced exhaled viral load, without fit tests or training. A duckbill N95 reduced exhaled viral load by 98% (95% CI: 97%–99%), and significantly outperformed a KN95 (p < 0.001) as well as cloth and surgical masks. Cloth masks outperformed a surgical mask (p = 0.027) and the tested KN95 (p = 0.014).

Interpretation

These results suggest that N95 respirators could be the standard of care in nursing homes and healthcare settings when respiratory viral infections are prevalent in the community and healthcare-associated transmission risk is elevated.
post 1701828461 06-01-2024, 06:33 AM
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  1. Bushmaster
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