🔍 Polypropylene Disposable Face Mask Filter Insert (20 Pack) - 95% Efficient, 3 3/8" X 6" Size Review

Thick, layered and I would highly recommend them when they start charging more sensibly. I paid over $50 for 40 thick towels!

Great thickness, great quality and great price. The perfect size for a face mask filter and the MERV rating exceeds the recommended CDC standard. Will definitely buy it again when the time comes.

Filters arrived on time. They are thick with many layers of material but remain breathable. I bought these to match my washable sheet masks with filter pockets. Filters are perfect for face masks. I haven't had a chance to evaluate the filtering options, but for now I'm extremely satisfied.

I live in South Florida, one of the COVID-19 hotspots. It is very important to me to protect myself from the virus as much as possible. I find that putting these filters into pocketable cloth masks can provide additional protection. My order was processed very quickly and delivery was amazingly fast. I am sure that I will reorder this item.

I was very happy to find these filters. I spent quite a bit of time looking for filters for my C19 mask that were made in the USA. It was exactly what I was looking for. However, when I received them I noticed that they are perforated in the middle! If you hold them up to the light (mask test) you could see through the filter! Doesn't that defeat the purpose? The photo is inaccurate, at least in my case. Very disappointed. Buy with caution.

Ordered in July and received great 4" x 6" filters (they were actually a generous 4 3/8" x 6"). These filters were soft, flexible, ideal for homemade masks, and easily covered the nose and mouth area. Ordered again in August, although I did notice the sizes listed were smaller (3 3/8" x 6"). Some of the new filters are 1/4" smaller than advertised. Some of them are the advertised size. August filters are 1" shorter than July filters. They barely cover the nose and mouth area (depending on face…

This was my second order of these filters (I've ordered 4 packs each time). I originally bought these to give to my friend who works in law enforcement. I wasn't sure if the other online mask filters from China were really what they claimed. These are 4" x 6" and fit perfectly in the bag of reusable masks (which I bought from a local gym supply store that thinks outside the box!). I'm quarantined at home and feeling helpless so I'm buying local. made masks and these filters to distribute to…