... 3,OEM&ODM Available 4,Good Quality & Competitive Price Anaesthesia Machine Anaesthesia,Medical DeviceSpecificationsGas supply:O2/N2O/Air 0.27~0.55MPaFlow ... T.P.F compensationsDraeger LC output concentration 0.2%~6%Anaesthesia circuit: Relief valve:0.5~7kPa CO2 absorber volume:≥1 ... , O2% low,O2% high, battery low, batter insufficient Power filure. Anaesthesia Machine