Oxygen is vital for maintaining life in medical services. Medical oxygen is not only essential in all medical services, but also the most important facilities - hospitals, clinics, mobile hospitals/clinics, combat hospitals, home care

In high altitude and hypoxic environments such as high mountains, high plateaus and high plateaus, hypoxia is the main reason for the poor working ability of human body and brain in these areas.

In 1922, the British Everest mountaineering team used oxygen to climb at high altitude for the first time, which was the second time that humans climbed Everest. At that time, the oxygen equipment was used as the oxygen supply for climbing