NBC 40mm Respirator Mask Filter - Nato Style - Full Protection Against Chemical, Smoke, Smog - 5 Year Warranty

Package arrived on time. One canisters date was un readable. Plastic was busted on both however the canisters wee in tact and still had their seals in placeUpdate: upon using one of the filters it would not seat in my mask properly(the other did) and wreaked of ammonia when breathing through it( tested it outside on a windy day just to see if anything changed, it did not).

Exactly what I was looking for. These fit my masks and look like they should do what's expected. I haven't officially broken the seals and tried them out but I trust them to do the job right when needed

When I put this filter on my mask, I can tell the difference from the other filters I have. I can tell the air is very clean. The others are too, but I think this is more clean. Anyways, it a good addition to my others.

I don't feel the increased air resistance from my other filters as I do with this one.

Should fit fine. Lets hope I never have to use it. They do have a 5 yr shelf life with a date of manufacture listed on the side.