Principles of Operation
MSA’s ExtendAire Systems are Emergency Breathing Supply System (EBSS) accessories that use intermediate pressure air to provide firefighters with a source of emergency breathing air. The ExtendAire system allows firefighters to quickly and easily connect to and breathe from a fellow firefighter’s air cylinder. ExtendAire Systems are tightly integrated with the SCBA to provide unrestricted mobility and easy access during critical situations. The system uses a quick connect with an integrated check valve that prevents the breathing air pathway from being contaminated by ambient air.
The ExtendAire I System is integrated to the Firehawk® Second Stage Regulator’s intermediate pressure line. Coupling the system's 40-inch rescue hose between SCBA, provides both firefighters with intermediate pressure air for emergency escape.
MSA’s new ExtendAire II System offers an integrated rescue hose used with the PR14™ First-Stage Regulator that features both male and female quick-connect fittings. The system is stowed in a waist pouch that mounts on the carrier assembly and is designed to prevent snagging and accidental opening. The ExtendAire II System also connects to the ExtendAire I System for additional system flexibility.
Coming soon to FireHawk Air Mask (2002 Edition) and FireHawk M7 Responder Air Mask
Approvals & Standards
This air mask is approved by the National Institute for Occupational Safety and Health (NIOSH) and is NFPA-compliant without interconnection of two users to one apparatus. NIOSH does not certify respirators for use as buddy breathers; therefore, attachment of a donor’s emergency breathing hose to a receiver’s emergency breathing hose voids NIOSH/MSHA approvals for both apparatus. Users must exercise care while maneuvering during escape; failure to do so can result in serious personal injury or death.
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