N95 masks without training may protect poorly against Covid-19 - STAT

N95 masks without training may protect poorly against Covid-19 - STAT

Without training, N95 masks may not protect workers on the Covid-19 frontlines

By JOSEPH G. ALLEN AND DAVID CHRISTIANI

ADOBE

When properly used, N95 masks can help protect health care workers from being infected with the coronavirus. But it takes training to use them correctly.

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