Air compressor can be divided into piston type air compressor and screw type air compressor due to different principles, and the accessories of air compressor are also different due to different structures. Air compressor accessories are mainly some conventional vulnerable accessories, such as sensors, controllers, valves, switches, instruments, motors, etc. The replacement of air compressor accessories needs to be operated by professional and qualified personnel. Once any abnormality is found, the air compressor shall be stopped and measures shall be taken to eliminate the abnormality. Air compressor accessories model selection can consult customer service or message for professional advice.