VARON Portable Oxygen Concentrator 1-8 L/min NT-08G

Whether you're reading at home, walking outside or heading to bed, NT-08G keeps you breathing with 93% oxygen through 1 to 8 flow settings. It weighs just 4.37 pounds and is light enough to carry anywhere. Three Different Charging OptionsAC Power Supply - Home/Hotel/ Office/ Indoor UseDC Power Supply-Use in the CarExtra Battery - Outdoor Use   Comparison of NT-08G /Rove 6 (Mobile users, please swipe the chart below left and right to view the comparison details) Model & Features Model VARON NT-08G         Rove 6 Price $1300 $2995 Oxygen concentration 93% ±3% at all settings 90% + 6% and - 3% at all settings Adjustable flow 1-8L  1-6L Operation mode  Pulse flow + Release oxygenevery 3 seconds  Pulse flow Low noise 40-60dB（A） 37-62dB（A） Weight 4.37lbs(1.98Kg) 4.8 pounds(2.2kg) Timing function √ × Portable handle √ × Charging time  Standard: ≤2.5 hours Standard: Up to 3 hours Battery life Up to 4 Hours on Setting 1 Up to 6.5 hours on Setting 1 Rechargeabl