Three-layer reusable and washable Face Masks made from 40% recycled plastic - pack of 3 in whiteIncludes SILVERPLUS® technology which provides protection against the transmission of infectious airborne molecules. Outer layer has been treated with an antimicrobial and water repellent finish (this kills microbes that are deposited on the outer surface from touching or breathing). The inner layer has a mesh ply filter made from 100% Polyester. The 2.4mm thick needle punched non-woven filter stops particles greater than 5 microns and offers barrier properties of 75% and higher. This filter layer provides the primary filtration of the Face Masks. Masks are made from 40% recycled plastic The inner layer has been tested against all skin types and provides the highest air permeability needed for breathing. Each pack contains 3 x white masks, 10 washable filters and a storage pouch made from 100% recycled plastic Delphis advise you change your filters between 5-10 washes