Caire FreeStyle Comfort Portable Oxygen Concentrator

This is a compact and lightweight portable oxygen concentrator with a curved design for comfort. The device uses pulse dose technology to deliver oxygen when the user inhales, conserving battery life. Comes with an extra battery, an additional battery charger, and all charging cables, including a car adapter. Original new cost for the concentrator with one battery was $2700, the battery charger was $325, and the spare large battery was $589. Asking $2000 for everything.