This aluminium mask can be contoured to fit comfortably around the mouth and nose. Suitable only to reduce discomfort caused by exposure to coarse non-toxic particles where the concentration of the particles does not exceed the maximum permissible exposure. Each mask is Supplied with two replacement pads. NB: This dust mask is NOT a respiratory protective device and SHOULD NOT be used against fine particles, gases, vapours or paint sprays. It SHOULD NOT be used where a device with European Directive 89/686 or 89/656 is required.