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Inogen One G3 Portable Oxygen Concentrator

The Inogen One G3 Portable Oxygen Concentrator has been discontinued. We recommend the new Inogen One G5 Portable Oxygen Concentrator.  Click here for more information.

Out of stock


Made in USA
FAA Approved
Rx Required
3 Year Warranty
  • 4-8 hour charge time
  • Adaptive response to activity
  • Weighs 5.8 lbs with battery
  • Pulse dose delivery
  • Ideal for traveling

Inogen One G3 Portable Oxygen Concentrator Overview

The Inogen One G3 weighs about 5 lbs, which makes it perfect for traveling. For additional portability, the Inogen One G3 Portable Oxygen Concentrator includes a carrying bag or backpack. 

Like the majority of oxygen concentrators, the G3 comes with a pulse dose for oxygen delivery. With the pulse dose delivery method, the oxygen concentrator provides oxygen only during inhalation. When it detects an exhale, oxygen delivery is paused. The G3 has five varied pulse dose settings that can be interchanged with the help of the flow control buttons on the oxygen concentrator. Consult with your physician if there is any need to change your oxygen delivery settings. 

The Inogen One G3 Portable Oxygen Concentrator is among the lightest and most portable oxygen concentrators available. If you require additional battery life, then you can upgrade your battery to the 16-cell battery providing 9 hours of extra usage and adding less than 1lb of weight.

This portable oxygen concentrator is lighter, more efficient, and smaller in comparison to its predecessor, the Inogen One G2 oxygen concentrator. The G3 is mobile, easily held with one hand, and comes with a sleek carry case with a handle to add even more portability. 

The 8-cell or upgraded 16-cell batteries can be recharged quickly for about 4 hours and 6 hours respectively. The Inogen One G3 Portable Oxygen Concentrator has five varied settings for pulse oxygen flow to preserve both the time and energy between charges. 

Portable oxygen concentrators filter out room air to deliver a concentrated dose of oxygen to individuals. You do not need to worry about refilling oxygen tanks. Just simply switch on the oxygen concentrator and breathe. 

Inogen One G3 Portable Oxygen Concentrator - Features

Battery Life - Inogen One G3 Portable Oxygen Concentrator

You can customize your oxygen therapy experience based on the oxygen flow and battery settings. You can easily make changes to the configuration of the battery with two alternatives for the Inogen One G3 portable oxygen concentrator i.e. 8 cells and 16 cells. 

The Inogen One G3 {portable Oxygen Concentrator has DC and AC adapters, allowing patients to use and charge the device from anywhere they want. The LCD screen displays the battery icon with a lighting bolt sign or an AC plug icon so you are aware that the device is plugged in and charged properly. The charging time varies depending on your oxygen settings and whether it has been used or not in charging mode. The battery can be removed very easily while pressing down on the latch and sliding the battery out of the oxygen concentrator. To replace the battery, just slide the battery back into place until the latch clicks. 

Adaptive Response - Inogen One G3 Oxygen Concentrator

The Inogen One G3 Portable Oxygen Concentrator features an adaptive response technology, which regulates oxygen delivery based on your breathing rate. The pulse dose setting of oxygen flow reduces with an increase in the rate of breathing, which ensures there is no unnecessary waste of oxygen during exhalation. While resting, you tend to inhale at a slower pace, so the pulse dose increases in response. 

The Inogen One G3 portable oxygen concentrator also has an Advanced Breath Mode. If it does not detect breathing within a minute, it will start providing automated oxygen pulses. After the unit has detected breath again, the concentrator will go back to its flow setting. The alarm of the Advanced Breath Mode detection can be turned off or on.  

Intelligent Delivery System - Inogen One G3 POC

This oxygen concentrator comes with an intelligent oxygen delivery system suitable to provide oxygen irrespective of whether the oxygen concentrator is active or not. The traditional oxygen delivery systems repeatedly monitor your breathing changes and pattern to assure proper use of the oxygen delivery doses. 

The majority of users need an increased dose of oxygen while they are asleep, which ensures that you get a suitable dose of oxygen all night. The Inogen G3 Portable Oxygen Concentrator achieves this by increasing and decreasing the pulse size. 

This Intelligent Delivery System of the Inogen G3 Portable Oxygen Concentrator identifies shallow mouth breathing while delivering a minute volume of oxygen with each dose. 

Breath Detection Alert Mode - Inogen One G3 Oxygen Concentrator

Inogen One G3 features a breath detection alert mode that repeatedly monitors the user’s breathing pattern. If the oxygen concentrator is unable to identify the breathing pattern after a minute, then it will alert the user through audible and visual signals and enter “Auto Pulse Mode”. The oxygen concentrator will come back to its previous oxygen pulse setting during inhalation and will exit Auto Pulse Mode after it identifies a breath. Consider watching the mode indication area on display to know whether the alert mode is off or on. The indication area will display a bell icon and the red light will be flashing with a message. 

Inogen One G3 Portable Oxygen Concentrator - Key Features

The 5-liter Inogen One G3 Portable Oxygen Concentrator delivers pulse dose settings between 1-5. With a single battery, this oxygen concentrator typically weighs about 5 pounds which makes it ideal for individuals who love to travel. 

The Inogen G3 comes with two battery power options, 8 cells for the single battery and 16 cells for the double battery. The 8-cell battery lets you enjoy oxygen therapy with a battery backup of about 4.5 hours and the 16 cell battery for about 9 hours. The batteries charge and operate efficiently on DC or AC power supply simultaneously. 

You can recharge the 8-cell battery in about 4 hours and the 16-cell battery in about 8 hours, approximately. 

It is recommended to use a single-lumen cannula, which is rated for about 5 liters per minute and can be extended up to 7 feet in length to ensure accurate breath detection with oxygen delivery (i.e. Salter Labs 16SOFT).

Inogen One G3 Portable Oxygen Concentrator - Accessories

External Battery Charger (BA-303)

Attach the External battery charger AC supply cord to the electrical battery outlet and the battery charger. 
Slide the charger to connect the Inogen One G3 battery and click and lock it into place.
A red light will flash, indicating that the battery is attached correctly and charged. 
A green light indicates that the battery is completely charged and it is time to detach the battery from the charger. 
H3: Inogen One G3 Backpack (CA-350)

The Inogen One G3 Backpack offers an alternative for comfortable travel. The backpack (CA-350) allows hands-free movement and improves comfort while traveling with the device. The Inogen G3 backpack also has extra pockets, so that you can carry accessories for the device. 

Nasal Cannula

The nasal cannula helps with oxygen delivery from the oxygen concentrator to the mask. It is advised to use a single-lumen cannula which can be extended up to 25 feet and is the ideal length for delivering pulse doses. 

Carry Bag (CA-300)

The Carry Bag (CA-300) has an adjustable shoulder strap and handles to protect the device while traveling. Insert the Inogen One G3 into the carry bag so that the display is visible through the plastic window. You can also access the nasal cannula from the open cutout, which is specifically designed for this purpose. You can see the exhaust vents from the open mesh panels. You can use the zippered bottom to hold the battery power. The Inogen One G3 Portable Oxygen Concentrator is suitable for use while traveling and the zippered compartment lets you use the oxygen concentrator with a double battery. 

Inogen One G3 - Input/Output Connections

Particle filters aid to clean the input air, which are located in the intake end of the oxygen concentrator. 
The nasal cannula is fitted in the cannula Nozzle to deliver oxygenated air from the oxygen concentrator. 
The DC power aids connect the external power from the AC or DC power cord.
The USB port is used for servicing only. 
The Inogen G3 oxygen concentrator is FAA approved, which makes it suitable for use on cruise ships, flights, and various other forms of transportation. 

Inogen One G3 Portable Oxygen Concentrator Box Includes

  • Inogen One G3 Portable Oxygen Concentrator
  • Rechargeable Battery (Option to be selected at Check-out)
  • AC Power Supply & DC Power Cable
  • Carrying Bag with Shoulder Strap
  • 3 Year Manufacturers Warranty
  • User Manual
  • Product Questions 



How To Avoid Device Failure with Troubleshooting?

The control panel on the G3 portable concentrator includes two LED lights to indicate operational status. The green LED is to indicate that a breath has been detected by the device. The red LED indicates an alert of some kind. Higher priority alarms or alerts will be indicated by a flashing red LED.

Low Priority Alert: The machine will beep twice and the LED will remain solid red.

Medium Priority Alert: The machine will beep three times every 25 seconds and the red LED will flash.

High Priority Alert: The machine will beep five times every 10 seconds and the red LED will flash.

The display screen of the Inogen One will also display alert messages to help users troubleshoot the alarms they experience. Refer to the user manual for more information on how to fix these alerts, or contact our customer care team for assistance.

How To Maintain The Inogen One G3 Oxygen Concentrator?

In addition to its lightweight easy pulse and ease of use, the Inogen One G3 does not require a lot of maintenance. The concentrator includes two particle filters that must be cleaned regularly. To clean them, simply remove them from the device and wash with a damp cloth and mild detergent. Let the filters dry completely before inserting them back into the machine.

The rest of the portable oxygen concentrator can be wiped down with a damp cloth and mild detergent. Be sure to unplug the device from any power source prior to cleaning. Do not let the battery get wet during the cleaning process.

Cannulas and tubing should be replaced regularly or as needed. To ensure the most efficient therapy possible, it is recommended that you do not use any tubing over 25 feet in length.

The Inogen One G3 Portable Oxygen Concentrator is FAA-approved for in-flight use. We recommend contacting your airline prior to traveling to ensure that you have all the necessary documentation and to make your trip easier.

What Is The Battery Durations Inogen One G3 Portable Oxygen Concentrator?

For Setting 1: usage up to 9 hours

For Setting 2: usage up to 8 hours

For Setting 3: usage up to 6 hours

For Setting 4: usage up to 4 hours


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Inogen One G3 Portable Oxygen Concentrator - Customer Questions
How much does the Inogen One G3 weigh?
The Inogen One G3 weighs 4.8 lbs with the standard 16 cell battery and 5.8 lbs with the extended 16 cell battery. Compare the duration of each battery while on your prescribed setting to see if you can benefit from the more potent extended battery.
Can I connect the Inogen One G3 to a CPAP machine?
No you cannot. The Inogen One G3 does not have continuous mode, it is pulse dose mode only. It has the ability to go up to pulse dose of 5 which is quite high considering how very light it is.
Why purchase the Inogen One G3?
The Inogen One G3 is one of the smallest and lightest portable concentrators able to go up to a setting of 5 pulse dose. The battery options allow the patient to determine what will be the best option.
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