With a history of more than 100 years, Debais Medical is the inventor of the nebulizer and was acquired by Drive Medical in 2015. Debais has a number of respiratory equipment technologies and put into the market, and its oxygen concentrators are highly reliable, but the product design is mediocre compared to Ace and Inogen, and the ease of use is also inferior.
 
Debax oxygen concentrators are named directly according to the gas output of the product. The Debashi 10L ultra-high flow model weighs only 19.05 kg and has castors for easy movement. This model is not sold in the Chinese market, and due to weight and volume factors, it is difficult for Chinese consumers to buy it.
 
The 5L medical model is imported from the United States, with low noise and power consumption, and strong reliability, but it is impossible to check the cumulative use time, and the ease of use is missing. In the Chinese market, the price is as high as 8,980 yuan, but in the American market it is much cheaper, only 599 dollars.
 
The portable iGo weighs 8.6kg, which is too heavy compared to the FreeStyle 5, which is also portable, and can be considered if it is only used in vehicles. This product is not available in the Chinese market, which is very expensive for $3,995 in the United States.