Pure Silver Antivirus Mask High Protection with Pure Silver Thread The face mask made of antiviral and antibacterial function fabric provides effective protection against bacteria, dust and viruses thanks to the pure silver threads it contains. The fabric contains 97% cotton fiber polyester and 3% pure silver. Characteristics ! Antiviral ! Antibacterial ! Pure silver thread ! Washable ! Comfortable breathing ! Nanotechnology ! No skin harm ! Environmentally friendly ! Chemical free