5 ms·
>... their plastic mesh isn't readily counterfeited, which is happening now with 3M Speaking of 3M and N95's, can anybody with some unbiased knowledge explain
by DoingIsLearning 6y ago
>... their plastic mesh isn't readily counterfeited, which is happening now with 3M
Speaking of 3M and N95's, can anybody with some unbiased knowledge explain what exactly is the chinese manufactured 'KN95' mask?
Are they just conveniently using the name or are the KN95 masks made to standard, to be P2/N95 grade masks?
- ceejayoz 6y agoKN95 is the Chinese version of the standard. Similar requirements, just a different regulatory body. There's a good comparison chart on page 2 of https://multimedia.3m.com/mws/media/1791500O/comparison-ffp2-kn95-n95-filtering-facepiece-respirator-classes-tb.pdf https://multimedia.3m.com/mws/media/1791500O/comparison-ffp2....
- _Microft 6y agoDid you know that e.g. Firefox's built-in PDF reader allows to jump directly into PDFs by appending (here) #page=2 to the URL? https://multimedia.3m.com/mws/media/1791500O/comparison-ffp2-kn95-n95-filtering-facepiece-respirator-classes-tb.pdf#page=2 https://multimedia.3m.com/mws/media/1791500O/comparison-ffp2...
- ceejayoz 6y agoI did not; neat!
- _Microft 6y agoYou can also add &search=N95 KN95 to find and highlight search terms. There might be other parameters but I do not know them off the back of my head. It's a great and totally under-used feature. Almost like the timestamped, searchable transcripts on Youtube... https://multimedia.3m.com/mws/media/1791500O/comparison-ffp2-kn95-n95-filtering-facepiece-respirator-classes-tb.pdf#page=2&search=KN95%20N95 https://multimedia.3m.com/mws/media/1791500O/comparison-ffp2... Edit: there's at least "zoom" available as well. I think it takes a percentage value as parameter.
- dragonwriter 6y agoAs for the standards, they are different but very similar: https://smartairfilters.com/en/blog/whats-the-difference-between-n95-and-kn95-masks/ https://smartairfilters.com/en/blog/whats-the-difference-bet... One thing perhaps to be concerned about (either way) is differences in the enforcement of the standard, but I don't have any solid info on that.