Produced by Shenyang Institute of Automation, China Academy of Sciences, Dalian Institute of Chemistry and other famous research institutions, Shenyang Song Xin Medical Technology Co., Ltd., the first manufacturer of medical oxygen machine in China, has been committed to the research and development and manufacture of oxygen therapy and respiratory therapy equipment for a long time, and has taken the lead in obtaining the quasi-number registration certificate of medical devices in China and successfully developed the world's first real-time oxygen concentration and flow detection and digital display device, and obtained a number of patented technologies and software copyrights; Among them, 6 ranked first in the world and 4 ranked first in China. With professional technology, stable quality and excellent performance, it has successfully entered the medical device market in more than 30 countries and regions around the world and topped the list.

Second place: Suzhou-Yingweikang oxygen generator

Although the Invicon oxygen generator is produced and assembled in Suzhou, China, it is the second on the list because of the advantages of the American brand "Invicon" and its deep understanding of Chinese consumer psychology. In the domestic market, the brand is above 5L. Although its noise is not low in the same category, it attracts many people because of its "silent" selling point and the rhetoric of foreign brands.

Third place: Foshan-Kaiya oxygen generator

Tailored by the most authoritative compressor supplier in China, the smallest three-liter oxygen generator in China weighs only 9kg and is easy to carry, occupying an absolute leading position in similar products. Low energy consumption, less than 180W per hour and less than 1 cent per hour, is the most economical choice for oxygen therapy, and its performance will never be inferior to that of large models of the same category; With the biggest advantages of volume and low energy consumption, it ranks third and is expected to surpass Invicon oxygen generator.

Fourth place: Jiangsu-Yuyue oxygen generator

After the listing of Jiangsu Yuyue Medical Co., Ltd., Yuyue Medical Co., Ltd. has attracted much attention. Its products are numerous, including home sphygmomanometer, wheelchair, crutch, atomizer, sputum aspirator and so on. The popularity has been greatly improved. With brand advantages and high popularity as a listed company, it entered the fourth place.

Fifth place: Zhongshan-Rongjie oxygen generator

Originated from Taiwan Province An 'ai Group-Zhongshan Rongjie Medical Equipment Industrial Co., Ltd., a global synchronous product and a world-renowned OEM manufacturer, it has decades of foreign trade production business of oxygen generators, international standard certification, foreign quality assurance, unique pressure sensing system and oxygen concentration sensing system, which has realized the automatic detection of its altitude and oxygen concentration, and achieved the double guarantee of its pressure and concentration to a greater extent, and quickly entered the top five with its superior performance, long life and warranty time.