New APOC-5 Oxygen Concentrator uses PSA Gas Separation Technology and France imported CECA molecular sieve. The portable oxygen concentrator is with novel structure, pulse type, very small and smart and elegant, it is easy to carry (only 2.35kg) and operate, which are powered by battery and AC power adapter and DC power adapter. They are mostly used for both car, home use, outdoor, field trips for health care and the needs of various groups of people at different levels.