First of all, the material of the machine itself does not contain oily substances and does not need to add any lubricating oil during operation. Therefore, the quality of the discharged air is greatly improved and the safety of the supporting equipment required by the user is guaranteed. Unlike the oil air compressor, the discharged gas contains a large number of oil molecules, which will bring varying degrees of corrosion to the supporting equipment of the user, Therefore, it is necessary to select oil-free silent air compressor to ensure air quality. Secondly, the use and maintenance of silent oil-free air compressor is also more convenient and simple than oil-free air compressor. As we all know, some oil-bearing air compressors need to be replaced or refueled regularly during use, and some air compressors have oil injection and oil leakage, which also pollutes the surrounding environment to varying degrees, requiring users to spend time to clean up, which relatively increases the workload of users, which is contrary to people's willingness to use machinery and equipment to improve work efficiency. Compared with this kind of air compressor, the oil-free silent air compressor basically does not need the user to spend time on maintenance, because it does not need to add a drop of oil. The fully automatic pressure sensing switch will automatically start or stop according to the air volume you use, which can be described as worry-saving and power-saving. The automatic drainage device also saves users a lot of worry, so it is very convenient to use. The service life is also longer than the silent air compressor with oil!