1.Clean air 100% oil-free, class 0 oil free air according to ISO8573-1. 2.Adopt GHH air end made in Germany. 3.Technology patent used in oil free compressed air system. 4.Significant energy saving, environmental-friendly and pollution-free. 5.Low operation and maintenance cost. 6.Powerful MAM microcomputer controller and touch screen. 7.Designed especially for medical, pharmacy, instrument, coating, chemical industry and food processing, etc.