3M Powerflow PAPR Cartridges are designed for use with 3M Powerflow Powered Air Purifying Respirator (PAPR) Systems. These cartridges are NIOSH-approved, offering protection against particulates. Powered Air Purifying Respirators (PAPR) are motorized systems powered by a battery pack that draw air through a filter or cartridge to provide respiratory protection to the wearer. 7000131701 - 50051138720037