The Aerox Oxysaver Cannula is an oxygen conserving device which can provide savings in oxygen use of up to 75%. It will increase oxygen duration by up to eight times compared to non-altitude compensated systems with masks or standard cannulas. For use with Aerox flow control and other systems capable of delivering low oxygen flow. Its soft nasal prongs offer maximum comfort over other designs. For oxygen delivery up to 18,000 ft. MSL.