Portable Oxygen Concentrator batteries/accessories

Inogen One G4 Single Battery - a compact and lightweight power source designed for the Inogen One G4 Portable Oxygen Concentrator, providing up to 3 hours of oxygen therapy on a single charge.
Inogen One G4 Double Battery - a compact and lightweight power source designed for the Inogen One G4 Portable Oxygen Concentrator, providing up to 5 hours of oxygen therapy on a single charge.
Universal AC Power Supply for Inogen One G4 Portable Oxygen Concentrators - includes North American power cord, compatible with 100V-240V (50-60Hz), charges concentrator battery while connected to AC outlet.
The Inogen One G5 Particle Filter is designed to keep your portable oxygen concentrator running efficiently by filtering out dust, pet hair, and other airborne contaminants.
The Inogen One DC Power Cable is specifically designed for use with the Inogen One G3, G4, and G5 portable oxygen concentrators. It connects directly to the automobile DC outlet or auxiliary DC power supply, allowing you to power your Inogen system and recharge the battery.