A home oxygen concentrator is a device that concentrates room air into purified oxygen for medical use. Home oxygen concentrators do not rquire refills, instead it uses the surrounding air and compresses it removing the nitrogen and then produces purified oxygen for the user. See our blog: "How a Oxygen Concentrator Works" for more info.
We carry a variety of home oxygen concentrators. Our standard 1-5 liter models are the Respironics EverFlo Q, the Invacare Perfecto2, the AirSep VisionAire, the DeVilbiss 5-liter, and the SeQual Companion 5. We also carry high-capacity models for those with high oxygen needs which are the Invacare Platinum 10 and the AirSep Intensity 10 that deliver 1-10 liters. The smallest and most portable home oxygen concentrator we carry is the Respironics SimplyFlo. The SimplyFlo delivers 1-2 liters and weighs in at about 10 pounds.
*Specifications on each model can be found by clicking on their images above.