Exactly as advertised; the easiest fitting mask I've ever used. Doesn't fog your glasses, either. Bought it for use in a shop environment with lots of abrasives and grinding dust in the air.... MUCH more effective than the previous mask used (P95 only), and more comfortable. Well worth the money: how much are your lungs worth? 3M R-2091 Particulate Filter P100, 4-Pack
I use these for woodworking and they do a great job of keeping the dust out of my lungs. I got these to replace the P-95/organic filter that came with my mask. The organic filter gets a little heavy on the face after wearing them for extended periods. The P100s are nice and light and allow me to keep my mask on for as long as I need it.
They work well for dust. Being a masonry tuckpointing contractor around the Chicago area I use these filters with a full face mask.You can knock the dust out of them a few times but eventually need to be replaced.
There is nothing wrong with the product. Unfortunately, the product description (and all the others for similar products as far as I can tell) does not give the size of the filter disk. I hoped that that meant that there was only one standard size, and ordered anyway. WRONG - this product has a 4 1/4" diameter. My mask needs 3" disks.
When ordering ten 4 pack products, two packs [ ten ] came. And a receipt is 30 pieces by two packs. And payment is asked for four packs [ ten ]. U.S. companies are what to this extent.
I was a former army, and since the U.S. Forces were playing an active part in the earthquake disaster, I placed an order by US Amazon. It is regrettable. From now on, he will buy it in Japan. - Respirators - Good - Dust - Filter'
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