MSA PremAire® Supplied Air Respirator System With Slide To Connect Regulator And 5 Minute Cylinder has a patented waist-mounted manifold that gives an incredible flexibility. Respirator System ensures easy movement between two stations without being tethered to an air-supply hose. It has vortex tube, that provides body cooling/warming, whenever protective clothing is required. It can be converted from a supplied-air device to an air-purifying system. It has dual-supply options that allows the user to connect from one pressurized continuous air source to another without losing continuity of airflow. It is light in weight and suitable for IDLH environments.