Lovego 4 Hours Mini Portable Oxygen Concentrator Lovego G2 with Low Oxygen Alarm for 1-4.5 Li

20190312

Light=Normal, Yellow=Caution <82%, Red with Audible Alarm=Warning <72% 3. Battery Life The lithium ion battery is rechargeable. Two fully batteries could support machine working 4 hours at any flows

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Lovego 4 Hours Mini Portable Oxygen Concentrator Lovego G2 with Low Oxygen Alarm for 1-4.5 Li