<b>Color:Thin Red Line Heart | Size:One Size.</b><br><br>Polyester fabric material,5 layers of carbon filter,m-shaped nose clip,comfortable,breathable,3pcs with 6 filters.</b><br><br>They can adjust the elasticity ear band,and you can change the length according to your face to prevent leaving marks on your face.Protects your mouth and face from dust,cold,dust,pollen,allergies,fog and haze,exhaust emissions,passive smoking(non-medical mask).<b><br><br>Use:</b><br>Hand wash and machine wash are acceptable,do not bleach.<b><br><br>Note:</b><br>Due to the size is manually tiled,with an error of 1-3 cm,and the size is subject to the actual product.Hope you have a good shopping!