Activated Carbon Filters 5 Layers Replaceable Filters Paper (100 PCS)

If you have a cloth mask that has those pockets in between when you open it these are the filters for you it might seem expensive but I stick two of them inside there and it helps me out a lot better it’s better than having nothing and sometimes those K9 Our medical mask are really expensive unless your doctor gives them to you when you see them but other than that I have a cloth mask and I stick these inside of it and for having a pack of 200 or 100 in a pack last pretty long

I use this as a filter in mask that has a pocket for this type of filter for added protection. They are well made and you get alot of them. Remember they are 5 layers so in the summer months if walking, running, biking it's pretty difficult to be wearing outside. Inside stores, large arena, etc they are perfect.

Works like charm. I wash the mask and let them air dry so that none of the plastic pieces wear or chip.

The filter works fine for what it is. I am not sure why it's called "anti-haze" as the filter has nothing to do with that, it's all dependant on the fit of your mask. I am using these in cloth masks and there is a noticible difference in how easy air passes through the mask with or without these. They are easy enough to install provided your cloth mask is made for them; not all of them are, so check that first.

These things work. I'm living in Smoke Central (California, 2020), so I need something to filter out the junk. N95s do a pretty good job, but have you looked at the price of them lately? Wow! These do a good job, too, at a fraction of the cost and much more comfortably.I tested these by walking among a bunch of smokers. From 15 feet away, without the mask, I got a strong whiff of the tobacco smoke, but with the mask on I couldn't smell it at all even at very close quarters. I did the same test on smokey days (lots of those this summer) with the same result. They work. They're also easy to breathe through. Easier than the N95s.NOTE: These filters ship with no instructions for use. Some research indicates they are probably good for a week or two of off-and-on use. Less if you're wearing them for eight hours a day. I kind of figure as long as they block the smell of smoke they're okay, but they're cheap enough to change out fairly regularly.Also, there is a right side and a wrong side to the masks, which isn't explained because no instructions. You need to place the filter with the PM2.5 label facing toward you.I like these things. Combined with my washable cloth face mask, they do the job. I'll probably keep wearing them even after the 2020 nastiness goes away.

This mask is "ok." I cannot breathe wearing it. And, I am careful about NIOSH. Made a mistake purchasing these. Watch out for NIOSH and Made in USA N95. This mask is okay for emergencies when I cannot find my Breathe 99 respirator.

Seems to be good product for the money.

I received the filters today and was pleased to find all 100 filters were there. Another company sent a shipment that was one short of 30. I compared these filters with that of the other company. They are exactly the same size, which I was expecting; however, there were noticeable differences. I noticed these filters had a thinner, more transparent outer layer. That concerned me so I decided to cut open one of each to assess the quality of both. I confirmed that this company makes a thinner outer layer; it’s very transparent. The second layer was about equal in type and thickness. The carbon layer on this filter feels less permeable and of better quality. I wish the outer layer was thicker, but knowing the inner layers are better quality makes me feel better. As for breathability, they feel about equal. All in all I’m satisfied with this purchase.