Inogen One G3 Portable Oxygen Concentrator - Certified Pre-Owned Upgrade to Extended Life 16 Cell Battery?:No (Standard) The top cover is fluid

The top cover is fluid resistant

allowing you to determine the best fit for your facial features

The VirtuCLEAN will automatically clean your system using Ozone

easily portable and safe bathing solution

Inogen One G3 Portable Oxygen Concentrator - Certified Pre-Owned Upgrade to Extended Life 16 Cell Battery?:No (Standard) The top cover is fluidThe new Inogen One G3 delivers the independence of our original oxygen concentrators, but its smaller, lighter, and makes more oxygen per pound with a longer battery life. In addition to the Inogen One Portable Oxygen Concentrator, the listed accessories below comprise the Inogen One System. The Inogen One System includes everything that you need to achieve independence. System Includes: One single battery Concentrator Standard 1 year warranty AC DC