PM2.5 Activated Carbon Face Mask Filters - 10 Pack Replacement Filter Inserts w/ 4 Exhaust Valves for Air Pollution & Pollen Protection - 5-Layer Non-Woven Breathable Dustproof Mask Filter

Item arrived as described and quick.

Does a great job.

So this is a cheaper alternative to the RZ branded filters. Seems to work great. These were for my son who works at a feed mill in Wisconsin. He did say the the inside of the filter seemed to get "fuzzy" frays against his cheeks. He used a lighter to burn those off & it is a lot more comfortable & smooth for him.

Nice replacement filter for mask! Easy install, great fit.

The replacement filters fit in the mask fairly well, but for overall comfort and value, N95 masks are what I like best.

My bad for not taking a closer look but I realized once replacing the filter on my earlier RZ dust mask that the sizes are different and the air holes are not in the correct place.

No dislike at all.i use when cutting my lawn and for leaves ana grass . Great for protection.

a little stiff starting out. And had a hard time fitting in my mask but after i loosened it up by crunching it in my hand it was fine. Doesn't fit every mask or every face. Will slide down in mask when sweating. Buy it came quickly works once you get past the things above