For use in our Niche face masks, along with other double lined protective masks, these 3-layer filters are 95% more effective at blocking airborne particles than most woven materials. Lightweight and an easy way to provide more protection.
Constructed from polypropylene spunbound woven, with a Nanofiber fine filtration layer and a surface layer of polyester nonwoven. Finished with sonic lamination.
Sold in sets of 6 filters for $5.00.