Specifications: -100% brand new and high quality -oxygen purity：30% -90% adjustable -oxygen purity related：5L/M 30% +/- 3%; 4L/M 45%; 3L/M 60% +/- 3%; 2L/M 75%; 1L/M 93% +/- 3% -flow settings：1-5L/Min adjustable -sound level：≤ 43 dB to any environment -Format：260mm x 195mm x387mm -Weight：12.3lbs (5.6 kg) -operating temperature：41 ° to104 ° F (5 ° to 40 ° C) -storage temperature：-4 ° to 140 ° c (-20 ° to 60 ° C) unit only -Altitude：up to 12,000 ft (3657 m) -Filtration：internal medical bacteria filter -DC power：ingresso11. a16.8VDC 20 A max,output 14.8 V DC 8 A max -AC power supply：input100 to 240 VAC, 50 / 60Hz, 1. 8 A max -Plug:US/EU/UK -energy consumption：110 W during charging,90 W while not charging -types of alarm,no power, no flow, low battery,battery discharge, wrong battery,technical failure system -Lithium Ion battery:14.8 V DC, 1.5 lb (0.7 kg), charging time is about 4 to 5 hours for the battery to be fully discharged ,Working hours can last about 2 hours, in full charge. -Function:Elderly people with asthma or weak breathing difficulties, on the way to the hospital, outside travel, taking a walk, supplemental oxygen, recovery energy, long distance driving drivers to eliminate fatigue or alcohol hangover. Package Includes: 1x portable oxygen concentrator 1x drawacarriage 1x shoulder bag 1x Lithium Ion battery 1x Car Inverter 1x AC power cord and DC 1x oxygen tube headset 1x Antibacterial filter 1x humidifier Tube 1x humidifier connecting pipe 1x user manual
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