Face masks provide protection from airborne viruses - preventing inadvertent touching of the face. Our facemask is made in Anaheim, California from a tough polyester-Spandex shell, a 3 stage replaceable filter cartridge, and a soft, pure cotton liner. This mask holds a replaceable 3-stage filter insert. Masks are available in Child, Small, and Large sizes. 1 replaceable filter cartridge is included and refills are also available.