The impurity content of high-purity oxygen has reached a certain standard, which is mainly used in scientific research, experiment and other fields. The direct use of high-purity oxygen for medical purposes will cause great problems. Therefore, high-purity oxygen is not equal to medical oxygen.

Medical oxygen is specially used for hospital breathing and is used by doctors. In addition to the fact that medical oxygen meets the requirements of human oxygen supply, it also needs the relevant national qualification certification to ensure that patients will not be in danger when using it.