AVIC Jianghang is the only professional manufacturer of aviation oxygen supply system in China, with strong technical background, a number of national patents, and a large number of military airborne oxygen supply products. At present, AVIC Jianghang has launched oxygen concentrator products on the market under the brand name of "China Airlines", mainly with small flow models.
 
The price of China Airlines 3L model ZH-A36 is 2580 yuan, its operating noise is slightly higher than that of Philips, the mute ability is poor, and the ZH-A36 does not have a remote control function. It is also a 3L machine, ZH-A31 is a pure "price butcher", the price of 1890 yuan is very cheap, but its fuselage weight is twice as high as that of Yuyue 8F-3AW, and the operating noise is also large, and the mobility and ease of use are average.