3 ms·

I think you are referring to this study https://www.cmaj.ca/content/188/8/567 https://www.cmaj.ca/content/188/8/567 Although N95 respirators appeared to have a

I think you are referring to this study https://www.cmaj.ca/content/188/8/567 https://www.cmaj.ca/content/188/8/567 Although N95 respirators appeared to have a protective advantage over surgical masks in laboratory settings, our meta-analysis showed that there were insufficient data to determine definitively whether N95 respirators are superior to surgical masks in protecting health care workers against transmissible acute respiratory infections in clinical settings.

yodon 7y ago
You are correct on the citation (it's at the top of the page so I didn't think it needed to be re-cited). My read is the researchers found that in actual daily use with trained mask users there was no benefit in respiratory virus infection prevention from N95 over traditional surgical masks (laboratory testing doesn't mean people working in a laboratory, it means a controlled experimental test setting as distinct from actual real world usage). Are you reading a different conclusion from that paper? As I read it, their meta analysis strongly suggests that as far as viral respiratory diseases go, N95 masks add nothing but cost, discomfort, and security theater when compared with cheaper, more comfortable, and easier to wear surgical masks.