1,3 ply face mask 2,BFE:95%-99% 3, Certification:CE; ISO 4.Anti ... uses in many industries and occupations,non-woven face mask (3ply ear-loop )1,3 ply face mask with ear loop 2,BFE:95%-99 ... ,Excellent quality,Good air permeability ,1.top sheet:soft non woven fabrics,breathable and confortable2.Size: 17.5 x 9.5cm ... : white/blue/green/red/pink/yellow etc , 3 ply disposable surgical face mask (earloop mask)