Patented technology, automatic disinfection mask.  the outermost and innermost layers of the mask are made of non-woven fabrics with antiviral and antimicrobial functions.  It can kill 99% of common pathogenic bacteria and novel coronavirus, so as to provide additional protection for users.  At the same time, it is killing the virus and pathogenic bacteria gathered on the surface all the time.  Instead of just filtering on the surface and accumulating.