... pressure limit, Power failure, Silence time for alarm, Alarm for oxygen supply failure.Anesthesia machine flowmeterO2 0.110L/minN2O 0.110L ... to assure the O2 concentration above 25%.Safety performanceAlarm for oxygen failure,Overflow valve, Safety valve, N2O cut-off with ... oxygen failure.Photo ( function(){ var aBigImageSrc = [ 'http://i01.i.aliimg.com/ ...