... MANUAL, STANDBY, DEMODisplay:10.4 TFT color screenWaveformP-t, F-t, V-t, F-v, V-pTidal Volume20~1600mlRespiratory frequency1~ ... N2O + Air flowmeterHypoxic guard system, keep oxygen concentration isn`t lower than 25%Oxygen flush25L/min~75L/minCircle absorberSafety ... 125KgWheels: 100mm (diameter), 125mm (height), with brakes on the front two wheelsEnvironments Temperature: Working: 18-36°C Storage: ...