Features 1) The raw material used by the oxygen generator is air and the only cost iselectricity; Low consumption results in low operating costs 2) The process of oxygen generation is controlled by pneumatic valves, giving acompact 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 climaticconditions and operates well in cold temperatures and at high altitude Use and applied range: 1) Use: oxygen therapy or oxygen health care for hospitals and home health careuses 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 megrimd) Oxygen treatment for altitude anoxia and mountain sickness such high altitudepulmonary edema, high altitude heart diseasee) Oxygen treatment for other common diseases such as diabetes, paroxysmaldeaf air conditioning sicknessf) Oxygen supplement for pregnant women, fetus and infantg) Oxygen supplement for cerebral tirednessh) Oxygen health care of the elderly for disease protection and anti-decrepitude Type and model: 1) Type: medical use type and health care type 2) Models: 2L, 3L, 4L, 5L per minute