Blue tie dye Adjustable Face Mask reuseable All Face masks are 2 layers of cotton Fabric. They all have a pocket for a 3rd layer or filter to fit into. Comes with 1 filter £4.00 Sorry this product is out of stock. Adjustable Face masks All Face masks are made from 2 layers of cotton Fabric. They all have a pocket for a 3rd layer or filter to fit into and a nose wire for better fit around the nose (see pictures) 1 disposible Filter will be provided. more can be purchased from places like ebay and amazon. Filters should be replaced after each wear. All masks will come with adjusters on the elastic, they just slide up and down to get the perfect fit. These can just be pulled off if not needed. Face masks should be washed after every use.