Oxygen generator is a medical equipment, not a healthy and fashionable equipment, so the preferences of size and appearance will vary from person to person. However, considering that different patients take a long time to inhale oxygen and need to start the machine for a long time, we must choose a machine with moderate size, optimized internal structure and ideal heat dissipation space. Only by comprehensively improving the heat dissipation performance can the oxygen concentration be stable. Look at the specific time when you need oxygen and choose the one that suits you. You can find it in the medical equipment store opposite Yanqing County Hospital (south of Dongjiang Hotel).