Oxygen generator with improved noise and vibration reduction, compactness, and user convenience

An oxygen generator capable of preventing overheating, noise, and vibration of a motor, the oxygen generator comprising an oxygen generator main body internally having a motor and a gas separation membrane module,

• wherein air compressed or sucked by the motor is separated into oxygen and nitrogen while passing through the gas separation membrane module, and the oxygen and nitrogen are then released through an oxygen release tube and a nitrogen release tube, respectively, and
• the height or position for nitrogen release inside a motor section is changed as the length of the nitrogen release tube is changed through a sliding guide provided on the nitrogen release tube, so that the nitrogen is released to the motor through the nitrogen release tube to cool the motor.

An oxygen generator with improved user safety and convenience, the oxygen generator comprising an oxygen generator main body internally having a motor and a gas separation membrane module,

• wherein an image projecting means is comprised on one side of the oxygen generator to give the user image guidance about the range for inhalation of oxygen released from the oxygen generator.