The Oxygen Generator and Liquefier (OGL) http://bit.ly/OGLEssex Applications Medevac (fixed & rotary wing) and ground transport, parachutist and ground evacuation. The Battlefield Oxygen Sustainment System (BOSS), was designed for the United States Air Force Special Services to generate, store, fill and deploy LOX. Currently, the BOSS features four Essex products, which are also available separately: The Oxygen Generator and Liquefier (OGL); the Backpack Medical Oxygen System Filling Station (BMOS-FS); the Mounted Medical Oxygen System (MMOS); and the Backpack Medical Oxygen System (BMOS). Applications Medevac fixed wing, rotary wing and ground transport, as well as parachutist and ground evacuation. http://bit.ly/EssexIndustries