Hospitals now generally use molecular sieves to produce oxygen. I feel like this is a general trend. After all, it has been there for a long time.
Liquid oxygen and busbars are both high-pressure and explosive. Chemical dangerous goods
Molecular sieves use physical oxygen production, using air as raw material, and using the physical properties of molecular sieves to produce oxygen. It is safe, convenient, and highly autonomous, and the subsequent cost is only electricity bills
Our hospital has cooperated with Terra Medical before, and using their oxygen generating equipment is much better than our previous bus!