This is great value. We are still wearing masks in some situations, and it's great to have a stash of well made, reliable filters.

Oh my goodness this works so well. I had a spot of unknown age and it removed it overnight. Will absolutely order these again.

Despite what the website said, the markings on the packages of filters were either Chinese, Japanese or Korean.Grossly Inaccurate Identification.

I have to separate each into 2 filters in order to breathe properly and comfortably. So, these will last a very long time. I remove the charcoal layer, but the 2 thinner filters are still good. I couldn’t find the sizes I needed for my mask and my partner’s.

Over the last few months, I've been trying out various face masks to find the ones with the best fit, comfort, and protection for everyday use. I don't work in healthcare or frequent high transmission risk areas so I don't usually need a high level N95-type mask. I finally found a cloth mask I was happy with that utilized PM2.5 filters that could be inserted into the mask. While the mask is washable, the filters are not and must be replaced periodically. I started looking for new PM2.5 filters…

These filters work well and fit in any standard mask with a pouch.The filters are very thin and allow for easy breathing and speaking.The nice thing is I had forgotten one of these filters in a mask when I put it in the washing machine. The filter actually washed very easily, didn't fall apart or make a mess in the machine, and came out nice and clean! I'm not sure if you're supposed to wash these or not. But, having them accidentally get put in the laundry didn't cause any problems like a…