Features 1. The raw material used by the oxygen generator is air and the only cost is electricity; a low consumption results in low operating costs. 2. The process of oxygen generation is controlled by pneumatic valves, giving a compact structure, reliability and convenient maintenance. 3. Safe and reliable operation under normal temperatures and low pressure. 4. The machine can be operated anywhere with domestic lighting supply conditions. Easy operation Continuous and stable performance. 5. The quality of the oxygen generating capability of the unit is unaffected by climatic conditions and operates well in cold temperatures and at high altitude. (refer to operating temperature) Use & applied range (1) Use: oxygen therapy or oxygen health care for hospitals and home health care uses. (2) Applied range: a. Oxygen treatment for respiratory diseases such as bronchitis, bronchial asthma (chronic obstructive pulmonary disease, COPD). b. Oxygen treatment for cardiovascular diseases such as coronary heart disease, heart functional disorder (heart failure) c. Oxygen treatment for cerebrovascular diseases such as cerebral anoxemia, cerebral infarct, cerebral megrim. d. Oxygen treatment for altitude anoxia and mountain sickness such high altitude pulmonary edema, high altitude heart disease. e. Oxygen treatment for other common diseases such as diabetes, paroxysmal deaf air conditioning sickness. f. Oxygen supplement for pregnant women, fetus and infant. g. Oxygen supplement for cerebral tiredness. h. Oxygen health care of the elderly for disease protection and anti-decrepitude. Type & model Type: Medical use type and health care type Model: 2L, 3L, 4L, 5L per minute