3 ply non-woven surgical face mask with good quality and competitive price 3 ply non-woven surgical face mask with round elastic ear loop and nose bar, made of 2 non-woven fabric and 1 filtration fabric( 25g/sqm+20g/sqm+ 20g/sqm or other speci)color available: green, blue and white packing: 50pieces/box, 40boxes/carton. surgical face mask