Rhythm Healthcare P2-E6 Portable Oxygen Concentrator

• Compact & lightweight.• Conveniently charge a backup battery while the device is in use  Charging time 2.5 hours. (additional purchase).• Battery duration up to 5.4 hours on setting 1.• High efficiency, low noise. Excellent heat dissipation.• High absorption sieve bed.• Equivalent up to 6L.• Includes AC/DC Car Charger.• Meets FAA Travel Restrictions. Please note - Any smoking while using the unit or evidence that unit has been used in a smoke filled environment will void the warranty. SPECIFICATIONS:Size: 8.7” x 3.4“ x 6.3”Weight: 4.37lbsWarm up time: 2 minutesSettings: Six Flow Settings (1-6)Oxygen Concentration: 90%-3%/+6%Oxygen Concentration Sensors- Low oxygen concentration < 87%- Incorrect concentration: < 50%- Concentration sensor error alarm Alarms- Power failure/ High and low temperature- Low oxygen concentration/ Low battery- High and low pressure /Sieve bed replacingAC Power Supply: Input 100-240v, 50-60hz (auto sensing to allow for worldwide use) DC Power Supply