... , breath frequency, MV 2,Gauge: 2 units, one N2O, one O2 3,Circle absorber: Compact circle ab the anesthesia machine ARIES ... circle absorberBellow: 0 ~ 1600mlOxygen FLUSH: 25L/min ~ 75L/minFlow meter:O2, N2O two-tube flowmeterO2 tube: 0L/min ~ 10L/minN2O tube ... .65MpaN2O: 0.25~ 0.65MpaGauge: 2 units, one N2O, one O2 v the anesthesia equipmet supplier ARIES 2800 with CE marked