4L Portable Pulse Oxygen Concentrator Build-in Battery

Specification: Model: OLV-POC4  Charging: 100V-240V AC / DC 14.6V  Max Flow: 800ml/min (Equivalent to 4L continuous oxygen)  Oxygen Concentration: 93% ±3% (1st-4th gear) Dimensions: 19.3x8.3x17.3cm (7.6x3.27x6.8 inches) Weight: 1.7KGS (3.74Ibs)  Battery Life: 55 min - 160 min  Charging Time: Within 2 hours  Operation Sound: ≤60dB    Perfect for outdoor adventures and on-the-go needs.  Application: It is the best choice for hypoxic patients when they go out for activities,travel or emergencies. It is also aperfect companion when working and traveling on the plateau above 2000 meters.