What's the difference between an oxygen generator and a ventilator?

Ventilator is an instrument to replace or control the patient's breathing. In the doctor's office, it is mainly to rescue critically ill patients who need oxygen. Ventilator is now an essential medical device in hospital, which is essential for emergency room, anesthesia and treatment of respiratory diseases.

But the oxygen generator is mainly used for ltot, which is similar to the ventilator providing oxygen. Ventilators are mainly patients with terminal respiratory diseases, and oxygen generators are used more at home after hospital treatment!

Ventilators are used by patients, and oxygen generators-healthy people can also use health care medical devices.