household oxygen concentrator 5l portable oxygen generator o2 bar air purifier battery operated oxygen inhaler 110v and 220v

enjoy oxygen therapy on multiple occasions: this portable oxygen concentrator can be connected with ac wall power,vehicle power and battery. trolley, battery and car inverter are included support 24hours continuous oxygen supply: the concentrator if you connect it with wall power and vehicle power, it can work for 24hours continuously support time setting at night use: when at night use, you can set its working time by the button on the machine. high oxygen purity: the oxygen concentration can reach 93% when it is 1 liter. convenient for household oxygen use:having this portable oxygen concentrator, you don't need to go to hospital. you can enjoy reach oxygen at home, in car and going outside..syi