PM2.5 Replaceable Activated Carbon Filter Anti Haze Filter Paper For Mask Face Cover (60PCS)

First and foremost, poor customer service all the way around. This product is NOT as described. Items came damaged and defective. Seller will not provide free return label. Description of item is free shipping and free return.This is not the case, you are required to pay for additional return shipping with the "promise of a full refund". Because this is a 3rd Party seller, Amazon will not immediately issue a free return label, despite being a PRIME member who pays for the extra benefits and services. DO NOT buy these masks from this company. Total crock. Amazon WILL NOT flag the seller for false claims. Avoid at all costs!

VERY happy with this product! My husband and I have about 5 cloth masks from various manufacturers, and this filter fits in all of them without issue. It works great even if your mask doesn't have a pocket for a filter - you just place the filter in you mask so your face touches it. Please note that the filter side with the printed "PM2.5" - IS THE SIDE THAT WILL FACE YOU WHEN YOU WEAR YOUR MASK. The filters are not washable, so you need to make sure you remove them from your mask prior to washing. These filters seem very sturdy and very well constructed. Totally worth the price and I'd buy them again in a heartbeat.

I purchased the filters for my masks I wear for CV-19 . But one day in an area where I couldn't social distance I kept the mask and filter on in a dusty situation . Without getting too gross , I noticed that my nose was less agitated. So in the future CV-19 or not in a dusty situation I will wear a mask with this filter.

I used these as inserts for my many double-layer cloth face masks bought elsewhere. They are rather small but most mask opening are designed for something that small. I often use two, overlapping in the center so that the entire mask is covered by the filters. Must have done the job as I've used those masks (changing filters as needed) for over a year, and caught not a single cold, flu, or COVID virus.

Very nice quality filters for my pocketed face mask. Got them quickly. Well worth the money. Thank you.

Thanks for sending out my filters. It did take them a little long to reach me than some of my other orders but I understand that there are a lot of orders for them going on now. Will be ordering again. Thanks!

I just received these filters and they fit perfectly in my 4 layer cotton mask. I noticed also that they are thicker than the ones that came with the mask. I feel like they are giving me more protection. I do not have any problem with breathing with these filters. I am happy that I found them on Amazon.

They are pretty tiny. Not very useful for my purposes but I can tape two together to make one thin and barely useful mask liner. I will keep looking for the kind I prefer