R 325.2405 Definitions pertaining to respirators.

Rule 5. As used in these rules: (a) "Atmosphere immediately dangerous to life or health" means a nonrespirable atmosphere. (b) "Canister" means a container filled with air-purifying media to remove gases and vapors from air drawn through the container. The canister may also contain an aerosol filter to remove solid or liquid particulate matter. (c) "Cartridge" means a canister having reduced air-purifying capacity. (d) "Facepiece" means that portion of a respirator that is designed to make a gastight or dusttight fit with the face and includes the headbands, exhalation valves, and connections for an air-purifying device or respirable-gas source. A half-mask facepiece covers the wearer's nose and mouth. A full-mask facepiece covers the wearer's nose, mouth, and eyes. (e) "Filter" means a media used in a respirator to remove solid or liquid particulate matter from air drawn through the respirator. (f) "Respiratory protective equipment" means a device or system designed to protect the wearer from inhalation of unhealthful atmospheres. (g) "Respirator" means a type of respiratory protective equipment.