Designed for long-wear comfort and style, with an integrated reusable filter socket, you get the most out of each use. Adjustable straps hold your mask in place Flexible metal nose clip offers a perfect fit and helps avoid glasses fogging and guarantees long-wear comfort 3 Layers of 100% natural cotton, tightly woven, AZO-free, certified REACH, and allows easy breathing while being softer on the skin and safe for children thanks to its anti-allergenic properties Tested and certified by Intertek Each style was individually designed by a local Montreal artist. Each mask includes: 2 x PM2.5 filter made of 5 additional protective layers Filters are not washable and are reusable for up to 40 hours of use Recyclable and reusable packaging for sanitary storing between wears