*Certified Pre-Owned*
Main Features
Introducing the smallest portable oxygen concentrator from the most popular brand, Inogen. The Inogen One G4 is capable of providing oxygen delivery in an unbelievable small and quiet package. At only 40 decibels, the G4 produces less noise than a normal indoor conversation. With flow settings from 1-3, the Inogen One G4 is designed to increase independence for most users 24/7. With its reliable, pulse-dose based Intelligent Delivery Technology, accurately detects your breathing rate and adjusts the oxygen level provided accordingly. It can be charged at home or on the go - giving you the freedom you deserve.
Compact and Lightweight
The G4 is designed to be the lightest and smallest portable oxygen concentrator, making it easy to carry around for daily activities or travel. It comes with a shoulder carrying case for added convenience. An optional hip bag and backpack is also available for this device.
User Replaceable Parts
Unlike most other device, the Inogen G4 has user replaceable sieve beds (columns). Sieve beds are what produce the air we breathe into pure oxygen. Most portable oxygen concentrator brands require you to send in your unit for service in order to replace the sieve beds. With the Inogen G4, you can do this yourself right at home!
Battery Life
Despite its small size, the Inogen One G4 offers reliable battery life to support users' active lifestyles. It comes with a standard 8-cell battery, but users have the option to purchase additional batteries for extended usage time. The G4's battery can be easily swapped out for a charged one, ensuring uninterrupted oxygen therapy on the go.
Flow Settings
The G4 offers a range of flow settings to accommodate different oxygen therapy needs. It provides pulse flow settings ranging from 1 to 3, allowing users to adjust the flow rate based on their prescription and activity level.
User-Friendly Interface
Like other Inogen products, the G4 features a user-friendly interface with clear displays and intuitive controls. This makes it easy for users to monitor their oxygen levels, adjust settings, and troubleshoot any issues that may arise.
Safety Features
Inogen prioritizes safety in its devices, and the G4 is equipped with various safety features to ensure reliable operation. These include alarms for low battery, low oxygen purity, or system malfunctions, providing users with peace of mind.
FAA Approved
The G4 is FAA (Federal Aviation Administration) approved for in-flight use, allowing users to travel by air with their portable oxygen concentrator.
Includes
| Operating Modes | Pulse Mode |
| Flow Control Settings | 3 Settings: 1 to 3 |
| Dimensions | 5.91" x 2.68" x 7.20" (with standard battery) 5.91" x 2.68" x 7.79" (with extended battery) |
| Weight | 2.8 lbs with standard battery 3.25 lbs with extended battery |
| Battery Options | Standard, 4-Cell Battery or Extended, 8-Cell Battery |
| Battery Duration | Up to 2.5 hours with standard battery Up to 5 hours with extended battery |
| Battery Charge Time | Up to 3 hours for a standard battery Up to 5 hours for an extended battery |
| Noise Level | 40 dBa at setting 2 |
| AC Input Range | 100 to 240 VAC; 50 to 60Hz |
| DC Input Range | 13.5-15.0 VDC, 10A Max |
| Operating Altititude | Up to 10,000 ft |
| FAA Approved | Yes - FAA approved label visible on device |
| Oxygen Concentration Purity | 90% -3% / +6% at all settings |
| Warranty | 3 Years (1 Year on Pre-Owned Units) Please note - Any smoking while using the unit or evidence that unit has been used in a smoke filled environment will void the warranty. |
| Pulse Flow Settings | Standard 4-Cell Battery | Extended 8-Cell Battery |
| Setting 1 | 2 hours and 40 minutes | 5 hours |
| Setting 2 | 2 hours and 15 minutes | 4 hours and 30 minutes |
| Setting 3 | 1 hour and 20 minutes | 2 hours and 30 minutes |
*Battery life is based on an average breathing rate of 15 breaths per minutes. Duration times will be less with a higher breathing rate.