... against dust,bacteria non woven disposable medical face mask Materials of non woven disposable medical face mask:1st layer: 25g ... : 220g needle punched clothAdvantages of non woven disposable medical face mask:Conforms to international standard:EN149:2001 ... , hygienic, clean, environment friendly.Applications of non woven disposable medical face mask:Chemurgical, Spray-paint/printing, Dyeing, Garage, ...