It features oxygen improve arterial oxygen content directly, rather than acting on the body parts indirectly improve oxygen, just increase the body's oxygen intake has been in my life. Not strange, need to adapt, to parse the body of substances, thus improving instead of altering the body's physiological and biochemical environments. Low flow oxygen therapy and oxygen health care without guiding effect quickly and certainly useful and harmless, the effectiveness of oxygen therapy to ease the symptoms of hypoxia in time to eliminate causes of hypoxia is only partial and gradual. For correct physiological and environmental Anoxia and hypoxia, preventing disease due to environmental hypoxia, oxygen therapy is important. For correcting the pathological hypoxia, oxygen therapy is an important complementary means. For emergency treatment, oxygen therapy is one of the important mean.