Based on the map of Ningbo, we can see that there is a pharmacy selling oxygen concentrators in No.1 Baizhang East Road, Jiangdong District, Ningbo.
Oxygen generator has a smaller size, easy to carry, there is a better quality oxygen generator is the United States Invicta, Shenyang Turtle and other oxygen generators, oxygen cylinders have 4L, 7L and 10L according to their own situation to decide.