... and tie-on size: 14x7cm, 15x9cm, 16x9cm, 17.5x9.5cm non-woven face mask, 2-ply, 3-ply, 4-plySanitation and quality in accordance ... paper+ 25gsm PP2) Size: 17.5x9.5cm, 16x9cm (for adult use), 15x9cm (for young), 14x7cm (for child)3) Nose bar: 10.5cm, 9cm4) Packing ... logos can be printed on7) Function:It is protective products for the medical enterprise, the chemical enterprise, the painting workshop, ...