3M universal conversion kit includes the blower unit that can be mounted on-the waist, face or head and is perfect to be used by the first responders law enforcement, military as well as health care professionals who need protection against natural disasters or acts of terrorism. It contains papr systems that allow constant airflow to provide a cooling effect for the workers. It provides respiratory protection with its included loose fitting headgear.Standard/Approvals: NIOSH Approved TC-23C-22013M Respirator Conversion Kit, For Use With 3M FR-57L10 and FR-57N10 PAPR Assembly, Universal, Butyl Rubber, Includes: RBE-BTH Breathing Tube with Clamp, RBE-BLT Decon Belt and RBE-57 Particulate Cartridge