Sanfiland New 3D Cutting PM 2.5 Activated Carbon Filter Insert, 5 layers Pm 2.5 Filter Replaceable Protective Filter to Anti Haze Dustproof Air Pollution Large Size (24)

I like these because they fit nicely in the cloth masks that have the extra area for filters. I also like the fact they give me more protection.

I've used these for a couple years inside of my cloth masks and have been much more comfortable than the flat options. I've been staying healthy using them too.

So glad to finally find quality mask filters that cover your nose and mouth. We’ve received oodles of the smaller ones with masks we have purchased but if the filter doesn’t cover your mouth AND nose what good is it doing you?? Love these. A bit challenging to get situated in the mask pocket but once it is in place, it stays. Highly recommend

No complaints here. Got exactly what I paid for. 👍

We have reorder these a couple of times because we love how the shape actually fits over the nose in cloth masks. Most are just rectangular. They actually help the cloth masks from sucking into your mouth when talking and breathing too.