Home / Shop Online / Oxygen and Accessories / Portable Oxygen ConcentratorsPortable Oxygen Concentrators Inogen One G3 Portable Oxygen Concentrator $2,500.00 – $2,900.00 Select options Inogen One G4 Portable Oxygen Concentrator $2,500.00 – $2,900.00 Select options SimplyGo Mini Portable Oxygen Concentrator $2,800.00 – $2,900.00 Select options SimplyGo Portable Oxygen Concentrator $3,600.00 Add to cart