portable Oxygen concentrator/portable oxygen concentrator generator

  Portable oxygen concentrator Product Description      PSA technology Portable to be used at home, in the cars and in the open air Three power supply: AC, DC and rechargeable battery Flow rate: 0-5L Purity: 93+-3% Outlet pressure: 0.04-0.06MPa Sound level: <=45dB(A) Alarm: Alarm can be heard without breath for 30 seconds, alarm will be heard when batter is less than 10%. Net weight: 3.9kgs with battery Electric classification: Class II Grade B Size: 290*188*100mm       1.International most advanced physics PSA technology;   2.Adjustable flowrate,flexible purity range;   3.24hours continuously oxygen supply,Durable and practical features;   4.Low consumption ,low noise and Multistage filtering;   5.More economic and environmental;   6.High-end professional vehicle power supported,Aerobic tour