1.portable anesthesia machine 2.easy to operate, applicable to basic hospitals 3. high precision flowmeters 4. compact design ... , manualRespiratory rate6bpm40bpmTidal volume50ml~1200mlI/E ratio1:1, 2:3, 1:2, 1:3Displayhigh luminance LED displayventilator compliance≤ ... Safety valve, N2O cut-off with oxygen failure.Photo 1 Piece/Pieces Portable Anesthesia machine with ventilator, High quality equipment