At what point are you going to lower the price of these to something even remotely competitive with all the other sites out there? Was your buyer just totally suckered so you won’t sell them for something reasonable?
@tasco thank god the’yre “pro-muscle”. The KN95s I get from eBay that are similar are not specifically rated as pro-muscle, so now I’m worried I’ve become anti-muscle. That’s not the message I want to send.
@radi0j0hn@thebumm You must not have read the entire article. Says right in it: “Please note, that NOT all KN95s have loose earloop bands, and NOT all KN95s are of poor quality. It should be noted that many of the earloop KN95s are more comfortable to wear than tight headwrap N95…”
@PooltoyWolf Oh, I LOVE him - thanks for posting that, I’d never seen it! And it makes me feel so vindicated! Where I work, we’ve gone from having departments with one-word names to ones that now have five or six. I guess everyone gets to feel more important that way.
I have now worn my Meh-purchased kn95’s in Houston, on a nine hour flight full of Dutch and expats, in a taxi, and in Belgium (europe’s hottest hot spot) and haven’t gotten sick yet.
So maybe they’re legit.
This style mask is far more effective than the flat pleated type.
At least once, Meh was selling 4-layer masks.
The CDC recommends 5-layer masks.
The masks they’re selling here are not advertised as 4- or 5-layer, which is a red flag.
I remember a few months ago people were suggesting you can re-sterilize your masks in a low temperature oven – maybe this is what happens if you leave them in too long. Or put one on your turkey before your Holiday dinner?
@pmarin well it appears melt blown cotton is a real thing (when searching I found it was usually used in conjunction with the words ‘melt blown polypropylene’), although I couldn’t find an explanation of how one melts cotton since heat usually catches it on fire where as polypropylene, when heated, melts. “Melt blown” seems to generally mean non-woven fabric.
@pmarin The translations sound strange, but more or less make sense.
Burnt fabric is activated charcoal. The mechanical characteristics of the activated charcoal, such as surface area and pore size, are highly dependent on what was charred to make it. Activated charcoal can literally be made by charring fabric.
Melt blown cotton is probably fibers that are made with a process that involves flinging a liquid so it solidifies in flight. The process looks the same as making cotton candy, but the chemistry and final product are way different.
If the translation is literal, the liquid is derived from actual cotton. I suspect it is more likely rayon or something similar. That can be derived from cellulose from any plant, but it usually is derived from trees, because they contain a lot of cellulose per unit mass, and sawdust is a very inexpensive chemical feedstock.
@hamjudo Interesting… thanks for the info. I kind-of makes sense. So like any of these masks they sound YMMV but probably moderately effective for what we need them for. I’m not sure about the charcoal but it could be a very thin layer. I do have some 3M masks from pre-covid days (for house remodeling projects) and there is one version that has a charcoal filter integrated into it. It was for welding and plumbing soldering and stuff. It feels noticeably thicker than the regular 3M N95s because of the “odor filter” layer which is only in that model. Given the pic of the masks in this offer, they do look just like thin layers of paper/poly products, so it doesn’t seem there’s room for that type of extra charcoal filtering in this design.
What they fail to mention (if these are in fact the same KN-95 masks they previously peddled) is that these masks make you look, well, doofy. Not that masks are or should be a fashion statement but while you’re out and about making your political statement it helps to not look like a douche nozzle with a sideways duckbill. Seriously, wearing one of these masks in public is the only threat I need to make my kids clean their rooms. I will say however, the glasses fogging performance (or the lack of fogging performance) is above average for me. Whatever metal they used in the nose bridge hits the sweet spot for the pliability:rigidity ratio.
Received my masks yesterday. The fit is excellent, but the packaging claims a “1 year shelf life” (I assume because of the activated carbon) and the masks were manufactured last April. Still going to use them, but just saying.