HACENOR Small Low Noise Portable 1-3L Oxygen Concentrator 90% High Purity With Long-time Battery Travel Use Continuously Work 1001BX Type:Oxygen Concentrator(With Built-in Battery)+1PC External Battery so you can sleep peacefully

so you can sleep peacefully and carry on conversations

Charge Time Is Approximately

Vehicle power supply:Power supply of vehicle lighter

one-button start

Noise ≤ 45 dBA At Any Setting Dimension 210mmx75mmx295mm

HACENOR Small Low Noise Portable 1-3L Oxygen Concentrator 90% High Purity With Long-time Battery Travel Use Continuously Work 1001BX Type:Oxygen Concentrator(With Built-in Battery)+1PC External Battery so you can sleep peacefullySpecification: Model Number 1001BX Oxygen Flow Mode Continuous Flow Oxygen Flow 1L to 3L Oxygen Purity 90%3% at 1L,63% at 2L,38% at 3L Weight Machine Weight About 3KG(6. 6lbs) Noise 45 dBA At Any Setting Dimension 225mmx120mmx177mm Charge Time 4 to 5 Hours Per Battery From Fully Discharging Battery Duration Internal battery can be used 2 hours after fully charged. External battery can be used 2. 5 hours after fully charged.