[doublekill]

No, there is a 2009 study which compares N95 mask efficiency with surgical masks, because they predict that during a pandemic N95 masks will be in shorter supply. (1)

They don't find significantly more efficiency for N95 masks, but other studies do find N95 masks slightly better. (2)

(1) https://jamanetwork.com/journals/jama/fullarticle/184819

(2) https://onlinelibrary.wiley.com/doi/full/10.1111/j.1750-2659...

Do a search on Google Scholar for "N95" in combination with "virus" or "sars" for more studies.

Really a shame that authorities, including the Surgeon General, claim that masks are not protective, despite medical science to the contrary.

[greenburger]

Even a simple homemade mask has some efficacy [1] though it significantly less. The primary author’s summary of wether they would be protective is “no” [2]

[1] https://www.researchgate.net/publication/258525804_Testing_t...

[2] https://twitter.com/chaiclate/status/1232972182667612162?s=2...

[drcode]

Great link!

Yes, it really hurts me, as a science-based person, to have scientists with authority say things that are unscientific.