1.portable anesthesia machine 2.easy to operate, applicable to basic hospitals 3.high precision flowmeters 4.compact design ANESTHESIA VENTILATOR ... limit, Power failure, Silence time for alarm, Alarm for oxygen supply failure.Anesthesia machine flowmeterO2 0.110L/minN2O 0.110L ... assure the O2 concentration above 25%.Safety performanceAlarm for oxygen failure,Overflow valve, Safety valve, N2O cut-off ...