50 Pcs 5 Layers PM2.5 Activated Carbon Filter, White, Non-woven Cloth, Melt-blown cloth, 50 Count (Pack of 1), PM 2.5

I use a Leovard adjustable mask that came with three PM 2.5 filter inserts. The mask has a pouch in which the filters fit. Since the mask only came with three filters, I looked on Amazon to find additional filters. These are the ones I selected based upon their description and price. Now that I have them, I have taken one apart, and also took apart one of the three filters that came with the mask. They use the same five part construction - a quilted exterior, then smooth paper, then the carbon paper, then another smooth paper, and finally another quilted exterior. Although the layers are the same, these filters feel a little thicker than the ones that came with the mask - although both seem to work just fine.

These are by far the best filters in terms of quality that I have ordered. I received some others that were paper thin and poorly packaged to where the product was compromised. Threw them ou. These fit perfectly inside of the pocket on my reusable washable masks and provide an extra barrier for safety. Very well made and good quality. I keep ordering. Would recommend

These have worked well with the cloth mask I bought. They are thick, and sometimes a little difficult to breath through( there seems to be like a plastic backing on it) but that's just the problems wearing anything over your face creates. These are a real value for the money if you want extra protection for your cloth face mask.

This filters are great to add to a mask. The only downside for me is I wish they were a little bit bigger. They don’t quite fill up the space in our masks from top to bottom. Side to side to side good.

These filters fit great into the clothe masks. I wear the mask and the filter for 9 hours a day with no issues. Having Asthma some of the masks make me short of breath but with these I have no issues

These filters are needed if you're wearing a mask, filters more germs out. Stays inside any mask I've used. I also use nose bracket for easier breathing after I insert the filter inside the mask. Flu season..and I don't want germs. ..of anything.

My first filters to buy so have nothing to compare them to but seemed ok. Thickness seemed good and they fit mask's pocket fine. Liked that they're in a resealable bag

For the mask during pandemic

Easy to use in masks. Wear comfortably

Very functional and allow colourful masks which can be washed each time and these inserts improve the usefulness of them.

Arrived promptly and of excellent quality

Fast shipping and item is as described. The filter is easy to use and fits well in my cloth face mask.