3M™ Air-Mate High Efficiency (HE) white color particulate filter is NIOSH-approved High Efficiency (HE) particulate filter cartridge that helps provide high efficiency respiratory protection against dust, mist, fumes, asbestos, radionuclides and radon daughters. Filter should be used with 3M™ Air-Mate Powered Air Purifying Respirator (PAPR) systems. Powered Air Purifying Respirators (PAPR) are motorized systems powered by a battery pack which draw air through a filter or cartridge to provide respiratory protection to the wearer. The blower unit can be mounted on the waist, face, or head, depending on the system selected.