MSA's RescueAire II Portable Air-Supply System provides easy-to-use, portable, and compact emergency breathing air. Designed for Rapid Intervention Teams (RITs), whose missions are to rescue downed first responders and others requiring assistance, the RescueAire II System is a lightweight and rapid solution for your team. The RescueAire II Portable Air-Supply System is compatible with all of your FireHawk MMR Air Masks, which also include the FireHawk M7 Air Mask. This feature-packed system consists of flame-and heat-resistant carrying harness with adjustable Nomex/Kevlar shoulder strap, Audi-Larm Audible Alarm low-pressure warning device, pressure-reducing regulator, second-stage mask-mounted regulator, 36" Quick-Fill System EBS connection, and ExtendAire System EBS connection. RescueAire II Portable Air-Supply System is available in both low-pressure (2216 psig) and high-pressure (4500 psig) versions. An optional-use shoulder strap is also provided for hands-free carrying.