| Home oxygen concentrators, the molecular sieve in the vacuum when the adsorption of nitrogen emissions back to the ambient air in the next Shi can absorb nitrogen and pressure system of oxygen, the process of periodic dynamic cycle, molecular sieve does not consume.
We often say that the "oxygen" in English described as "Oxygen concentrator" means that oxygen collector. Principle of the common market, two kinds of oxygen by the collector: one is to use molecular sieve oxygen production, the other one is to use "film with oxygen," also known as "oxygen-rich film" production of oxygen.
The first application of "oxygen-rich film," Japan's Matsushita Electric Industrial Co. has developed a high-flow oxygen-rich film production technology, developed four types of different flow membrane devices, from January 1986 to begin selling the device. The first oxygen-rich but oxygen is not used in air conditioning, the late 1990s, China's production of a company also hopes the introduction of oxygen enriched air membrane technology, but because of the speed of diffusion of oxygen in the air is not that we can imagine fast, oxygen-enriched air has been just a gimmick, no results. Good Japanese beauty, then beauty market development for the Panasonic a concentration of 30% of the oxygen flow rate 3 liters of oxygen membrane, the market and welcomed by Japanese girls, selling well. With a small molecular sieve advances in technology, portable oxygen concentrator membrane oxygen-rich advantages gradually disappeared, although the Panasonic in 2008 phased out the production of oxygen enriched membrane, but Panasonic has never failed to oxygen enriched membrane machine used in medical or health field.
The first "molecular sieve" PSA oxygen machine, was first manufactured in Germany Delin, faster 100 years ago. In the 1970s the United States entered the small molecular sieve oxygen maker for home oxygen therapy field, when the machine than it is now most of the oxygen machine-made
Also heavy machine almost 5 liters to 50 kg. And China is not the same, foreign (including U.S. and India) have to do with 5L Home Oxygen Concentrators, the reason is very simple 5 liters per minute, 5 liters of pure oxygen is inhaled into the lungs, spread the remaining mixture of about 41%, (we know that diving is 50% oxygen) which is suitable for long-term purity of alveolar oxygen exchange, and alveolar infiltrates in 50% oxygen environment 0.06Mpa following oxygen toxicity does not occur, and 50% of lung oxygen environment is the most effective body oxygen exchange environment without oxygen toxicity occurs. (Generally low flow or low concentrations of oxygen to be inhaled into the lungs has been spread and mixed into the air is almost the same, this is not much difference and suction air in). Excessive long-term oxygen damage to the alveolar pressure, oxygen pressure can not be strictly controlled abroad than 0.06Mpa.
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