Activated Carbon Replacement Filters Only for M PRO, M Plus or M Cross Mask,N Plus Mask (18 Pack)

I used all of these and it fit well with my mask had no problems

Great price. Fit my face well. Ear loops interfere with behind the ear hearing aids but mask stays in place while working at the lathe.

I actually like the replacement filters a bit more than the filter my basecamp mask initially came with. They're a little thinner, much stiffer and hold their shape a lot better to make breathing that much easier. A tad expensive but since I don't use masks all the time the extra cost isn't prohibitive.

Mask fits very comfortably on the face. But if the back strap is too tight it is uncomfortable when you move your head around. It would be great if your head was in a stationary position all the time. But that's not how we move our bodies is it.

BASE CAMP filters can be used for your BASE CAMP masks as well as other masks. Masks with filters are so important for personal protection these days. You could even insert these filters into the folds of your handmade masks and bandana face coverings.

If only filter is slightly more efficient is filtering out odors.

Very good product, my English is not good, so I won't say much, the conclusion is very good!

This Base Camp filter mask refills are simply the best!