Oxygen generator

Embodiments of the invention provide an oxygen generator. The oxygen generator comprises an oxygen supply unit, a respiratory detection unit, and a display unit, wherein the oxygen supply unit is usedfor outputting oxygen, the breathing detection unit is used for detecting a breathing state of a user according to a change in airflow of oxygen output by the oxygen supply unit, and the display unitis used for displaying a change in the breathing state of the user based on the breathing state of the user detected by the breathing detecting unit. By detecting the breathing state of the user anddisplaying the change in the breathing state of the user, the breathing improvement state in an oxygen inhalation process of the user can be truly reflected, the user experience can be improved, and due to the fact that the breathing state of the user can be truly reflected, accurate monitoring and early warning of a breathing function of the user can be achieved to reduce the use risk of the oxygen generator. 本发明实施例提供一种制氧机