FolsomMike Posted November 10, 2021 #26 Share Posted November 10, 2021 18 hours ago, NTurner said: https://www.cleanairresources.com/mask-protection-efficiency-scores So forgive me. Draw your own conclusions. I will stick with Outdoor Research. Thanks for the link. It also provides info on the disposable 2.5 filters which I typically insert into cloth masks. Apparently, they’re even more effective than I realized. 🙂 Link to comment Share on other sites More sharing options...
Rare FlyerTalker Posted November 10, 2021 #27 Share Posted November 10, 2021 Of course, recognize that this is a website for a business that sells masks and filtration products. And it's amazing how the products they sell are rated so highly!! Caveat emptor. Link to comment Share on other sites More sharing options...
KBs mum Posted November 10, 2021 #28 Share Posted November 10, 2021 Masks should fit snugly, and so will leave a mark on the face, but should not be painful (uncomfortable, yes, probably) The same spec masks from different manufacturers will have different sizing and fit, one that suits a person of craggy countenance will probably not suit someone of chipmunk like countenance. There is also the problem of variable proboscis prominence. Sometimes gently squashing the mask top/bottom or side/side improves the fit. The easy test is to put it on, then spray perfume (or similar) if you can smell it, the mask isn't working. 3 Link to comment Share on other sites More sharing options...
Jazmyn49 Posted November 10, 2021 #29 Share Posted November 10, 2021 Or try to blow out a candle. Link to comment Share on other sites More sharing options...
KBs mum Posted November 10, 2021 #30 Share Posted November 10, 2021 18 minutes ago, Jazmyn49 said: Or try to blow out a candle. I'm not sure that joke is allowed on this site😁 Link to comment Share on other sites More sharing options...
Rare FlyerTalker Posted November 11, 2021 #31 Share Posted November 11, 2021 3 hours ago, Jazmyn49 said: Or try to blow out a candle. And that would prove nothing, as breath expelled directly forward has zero relevance to air and particles coming in from the side. But nice try. 1 Link to comment Share on other sites More sharing options...
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