HACENOR Small 1-3L Portable Oxygen Concentrator 90% High Purity Continuously Work Low Noise With Long Life Battery 1001BX Type:Oxygen Concentrator(With Built-in Battery) EPR (Expiratory Pressure Relief) Feature

EPR (Expiratory Pressure Relief) Feature and AutoRamp makes therapy more comfortable

Easy to use: Simplified concise control system with intensive design

1 × Oxygen Cannula

Used Time: 5 Hours

Whisper-Quiet and Portable

HACENOR Small 1-3L Portable Oxygen Concentrator 90% High Purity Continuously Work Low Noise With Long Life Battery 1001BX Type:Oxygen Concentrator(With Built-in Battery) EPR (Expiratory Pressure Relief) FeatureSpecification: 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.