EDS-O2D2, CFF-480 Silica cylinder, XCR DIN-477 regulator.
The MH EDS O2D2 Pulse Demand Oxygen Delivery system is the only single unit, portable, two-place oxygen system currently available for aviation. A variety of options allow you, the pilot, to customize a system to your specific needs. The O2D2 kit comes with 3 'AA' batteries and 2 cannulas and 2 face masks each in their own handy carry bag.
NOTE: The EDS O2D2 and O2D1 are portable systems designed and calibrated to be used with their regulators (~15 psig. dynamic to 30 MAX. psig. static). However, if you wish to operate from the outlets of a built-in system, they offer the In-Line Regulator pressure reducing and stabilizing regulator. This will allow their portable EDS systems to operate with built-in systems that supply up to 125 psig. to the outlets in the aircraft.
Please Notice: The correct way to wear the EDS cannula is when the tab opposite of the two prongs on the cannula point down towards your upper lip. If it is not worn this way the EDS may not trigger with normal breathing efforts especially at higher altitudes.