1With timing function, can reach a maximum of 999 minutes. 2Intelligent infrared control system: large-screen LCD display, support intelligent operation and set oxygen supply time, very convenient for the elderly, you can read the relevant data on the screen. 3Using hard glossy safety engineering plastics as the cabinet, streamlined, comfortable and elegant design style, portable, stylish and beautiful. 4Using AC voltage as the power source and air as the material, using the most advanced PSA (pressure swing adsorption) technology to produce high purity oxygen for the oxygen generator. 5Suitable for home oxygen supply, health care function, improve the body oxygen supply system, supplement oxygen, improve health.