3M Performance P100 Particulate + Odor Filters, 2 pairs, NIOSH-APPROVED P100, 99.97% Filtration Efficiency Against Solids & Liquid Aerosols, For Use With 3M 6000, 6500 & 7500 Series (2097P2-DC)

Not only do these filter the air as our employees work, it give them peace of mind that we care enough to supply them.

They're not just super light weight, their the best in the business. I'm a metal worker who likes to always be well protected when I'm grinding metal. Essentially nothing of consequence gets through these. Once you make the switch to these filters, you probably won't want to use anything else ever again. They completely humiliate competing products from even the most reputable welding companies in the world. I know this from direct experience welding and grinding metal. My nose, knows. 3M's own 2297 filters are supposed to be more advanced, but though they are easier to breath through, they don't filter as well when the air gets really filthy. Also, beware of the many knockoff, fake 2097 filters that pretend to be P100 but have no NOISH approval. They look very similar and will fit 3M's masks but they are useless garbage when it comes to actual filtration. They are basically a scam.

I did a ton of research before settling on these particular filters. I was primarily looking for something to use for welding and all the reviews vaguely indicated that this would work. I got a 3M half facepiece 7502 unit and added these filters and they perform very well. The whole contraption is comfortable enough without any major complaints other than sweating during really hot weather.The filters eliminate all welding odor. I tested this multiple times and have concluded that this the filter to use for welding and grinding of metal. I am amazed at the lack of odor entirely when welding or grinding. I am also having zero respiratory issues now that I use this filter religiously.This filter also has the added benefit of working with nasty paint odors. I used these when repainting my wrought iron railings and could not smell the super nasty paint at all. After a painting session, I had just cleaned up and put everything away, I removed the respirator and suddenly was hit with overpowering paint fumes. It took me a minute to realize it was from the stir paint stick next to the closed can. Again, I was further amazed that not a whiff of the fumes had made it through the filters during my intensive session of painting the actual fence outside. Completely impressed with these filters and their dual abilities for welding and painting fumes. Highly recommended!

I'm using these with a 3M #7503 half face-piece respirator while doing a retro-fit of my attic insulation. 40-year-old loose-fill fiberglass infested with squirrel and chipmunk droppings, sunflower husks, acorn remnants etc.I feel much safer using a well-fitting respirator with replaceable filters instead of the various rubberband-style masks. Bought the 2-pair pack for economy but you can also buy a single pair -- fyi, there are lots more Amazon reviews on this filter under the single-pair item.There is a lot of info on filters and govt-jargon from OSHA & NIOSH that can overwhelm a non-expert like me. Someone on the single-pair product page gave these filters a 1 star review which I thought was unwarranted. So after some research, here is some of what I posted there, hope it helps you make the right choice...The "P" doesn't refer to particulate, it means the filter media is strongly-resistant to oil ("oil-Proof"). The other types are R for oil-Resistant and N for Not.Regarding size, particulate filters remove very, very small particles: smaller than 0.3 microns in diameter and that is just the median size of the particles in the test. For comparison, smoke has particles about 2 microns in diameter."100" means the filter is removing 99.97% of the particles. Compare that to filter types of, say, N99 and N95 which remove 99% and 95%, respectively. But all three types remove the vast majority of very, very small particles; 100-type filters remove the most over the duration of the test.This filter gives "relief against nuisance levels of organic vapors". But it's not for use in high concentrations.And while a filter like this will filter smoke particles, there are also gases in smoke -- DON'T breathe exhaust gases -- if there is CO it can kill you!Finally, I don't weld but per 3M's instruction sheet these can be used to filter "metal fumes produced from welding, brazing, cutting and other operations involving heating of metals."Peace out!

Ive seen alot of price-gouging online since the Coronavirus Pandemic started, and I know that filters like these are precious during this critical time. I have to wear a mask for long hours and before i was able to purchase these, I was using the HEAVY organic vapor cartridges with the N95 filters that lock onto the outside of them. The weight pf those filters is VERY fatiguing on my face and neck! The bridge of my nose has been sore and killing me. My neck has been aching so badly and I've been getting bad headaches.These P100's provide better protection than the N95,and since i they work on their own and don't need to be attached to a big heavy cartridge, my mask is much lighter and more comfortable!This is a fantastic product and I'd like to thank the seller too for charging retail price for this 2-pair pack! You are a lifesaver! I paid about $18 for for the box. Bout the same as I'd pay in Home Depot for them, give or take a dollar or two(if they had any available). If you're paying double that or more, you're being ripped off and you should report the seller.Thanks again for charging a fair price for a genuine product!