This Mask is a 3 layer mask made of 100% cotton. Face Masks for personal use. Washable- Made in the USA. We now use MICROSTATIC an antibacterial laundry additive bonds permanent antibacterial protection into fabrics during the laundering process. Continuously controlling unwanted bacterial, fungal growth and derived odors on all washable fabrics. Once ordinary-unprotected fabrics are transformed by MICROSTATIC into permanent antibacterial protected fabrics. Independent laboratory studies indicate treated fabrics effectively protect themselves against unwanted bacterial and other microbial attacks. Reducing bioburdens over 99.99%.