PRODUCT PARAMETER Power consumption(W)48Compressor gas displacement (L/min)≥11AC Power110-240VAC 50/60 HzDC Power12VDCBattery14.8V, 6.8AhBattery working hours2 hours/ 5 gradesBattery Charge time4 hoursBattery lifetime500 timesAdjustable delivery levels1,2,3,4,5Oxygen delivery rate (L/min)1,2,3,4,5L/min adjustableFlow Volume when max BPM is at 20 times/M (L/Min)1: ≤0.12, 2: ≤0.42, 3: ≤0.63, 4: ≤0.84, 5: ≤1.05Oxygen concentration93±3%Outlet pressure (kPa)70~150kPaSound level dB(A)≤50Environmentoperation 5℃~40℃, storage -5℃~60℃.Net weight (kg)2.35kgDimensions (cm)23cm*7cm*22cmWorking altitudeoxygen flow ≤3L/min ≤altitude 3500 meters, oxygen flow ≤3L/min ≤altitude 3500 meters PRODUCT HIGHLIGHT 5 Levels Pulse FlowAble To Charge & Use In CarEquivalent Flow Rate Up To 5l/min Slim Design-easy For Outdoor Walking Optional 16 Cell BatteryAccurate Breath Sensing & Fast O2 DeliveryStandard 8 Cell Battery For Max 4hrs WorkingEasy Maintenance Design-able To Replace Sieve Tank & Compressor