News for hackers. Stuff that matters.

A comment on Stanford students are more likely to wear masks on bicycles than helmets. Parent comment

Re:Stanford students are more likely to wear masks on bicycl... by jerlam on Saturday October 02, 2021 @12:17PM (#28729767)
Recent studies show that valved respirators are actually better than or equivalent to surgical and cloth masks for source control:

https://www.cdc.gov/niosh/docs/2021-107/default.html

However, the "valves bad" mantra has been repeated so long and so strongly that it is unlikely there will be any official guideline change.

[ Parent | on HN ]

There are no comments on this comment yet.