12 PCS PM2.5 Activated Carbon Face Mask Filter for Adults, Replaceable Mouth Respirator Filter to Anti Haze Dustproof Air Pollution Germ

I remember these. Reinforces face masks well.

I use these continuously because of health challenges. Two filters provide complete coverage in my masks.

Excellent value; each pair of filters come individually wrapped, which is more sanitary and I can dole them out to my children, one for current use and a spare. Fit perfectly in N95 masks, and add further protection in cloth masks. Very satisfied with purchase!

Accurate description. Filters come slightly attached in pairs, make sure you separate them so you don’t think you only have one filter in your hand, when is really two stock together. Got 12 and they got delivered quite quickly under the circumstances.

Wanted something that was a little more protection than just the disposable masks. This way I know that I can't spread any germs if I have any.