I have three portable oxygen concentrators for sale.
Want is used with about 300 hours on it comes with two batteries that last around 4 hours at 2 l per minute comes with caring bag home and car charger. Cost $500
Second is new inbox comes one to one double cell battery that can last up to 8 hours at 2 l per minute. Comes with carry bag home and cut her charger cost $1000
The third is new inbox comes with two batteries that last around 4 hours at 2 l per minute comes with carry bag home and car charger cost $800.
All units go to 5 l per minute unit is pulse dose not continuous flow they're all caire freestyle comforts.
If you have any questions feel free to contact me.