The masks are made from pre-washed cotton and poly blend elastic. Insert the Wire by folding over the top flap on the backside of the mask and sliding the wire through the top pocket. Remove the wire before washing. Insert optional filter (commercial filter, coffee filter or paper towel) inside the flaps on the backside of the mask.
Per CDC and medical community these masks are only to keep one's germs to one's self, and only offer VERY minimal protection from COVID germs, even with a filter.This mask is not medical grade. They have to be thoroughly washed after each short wearing, and one should be sure never to touch the mask area.