12.1 inch TFT color screen , big screen could show more information. Screen could be rotated freely, suitable to operate at any angle and height piratory time is adjustable. Three-level visual and audible alarm, with concise words describing problems Alarm record with clearance function , could record the last 100 pieces of information, show alarm grade, alarm time and the alarm parameter. Pressure, volume, time respiratory mode security, could inspect pressure in inspiratory phase, volume, time exceed the regulated value, turn into expiratory, ensure patient safety. Volume security function, keep the minimum tidal volume in pressure mode. Adjust MMV function automatically, adjust inspiratory pressure and breathing frequency, approaching the target tidal volume and minute ventilator. Low noise medical air Compressor, very stable performance, safe and reliable. VGA connector could output the screen signal to other screen High quality trolley with concise structure and good appearance, easy to assembly and detach. Size Weigh