The core of anesthesia machine is incorporated by three characteristics: Safety, Comfortability and Accuracy. Medical innovation must be consistent with actual needs and contribute to clinical experiences. AX- 900 has adhered to develop classic pneumatic drive electronic control technology. For the ventilators, we adapt advanced pneumatic components to ensure its safety and improve the stability, which make the accurate ventilation come ture. Comen is able to provide more comprehensive and precise data for clinic through continuously improved respiratory monitoring function, at the same time, more intelligent ventilation mode and more abundant breathing parameter adjustment are achieved through the combination of advanced electronic control technology and fluid control technology.