Our face masks are handmade in a pleated style of 100% cotton fabric. Each mask has a pocket for a filter. You can use any non-woven fabric such as coffee filters as a filter. There is a sewn in pipe cleaner across the top of the mask so you can form it around your nose for a snug fit. Machine wash hot, tumble dry low and iron if desired. Our masks have athletic shoelace style ties (elastic is in very short supply). A variety of fabrics available.