Thank you for viewing! (*´˘`*) These washable masks are made with Airism material, providing peace of mind with a BFE 99% cut. Although new, the package has been opened. The masks inside have never been taken out. Includes 3 small, 2 medium, and 2 large masks. - Size: M - Size: L - Material: Airism - Filter Performance: BFE 99% cut Thank you for your consideration.