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Inogen One G3 Portable Oxygen Concentrator With SINGLE BATTERY

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  • Inogen G3 at the park
  • Inogen One G3 Portable Oxygen Concentrator
  • Inogen One G3 Portable Oxygen Concentrator Picnic
  • Inogen One G3 Portable Oxygen Concentrator Top View
  • Inogen One G3 Portable Oxygen Concentrator Control Panel View
  • Inogen One G3 Portable Oxygen Concentrator Shown In Carry Bag
  • Inogen One G3 8 Cell and 16 Cell Battery Options
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 Product Description

 Inogen One G3 Portable Oxygen Concentrator | 8-Cell Single Battery

Inogen One G3 System - Model IS-300-NA


Click Here to View the  G3 with the Double Battery



Who can use the Inogen G3 portable oxygen concentrator?  Users who require an oxygen device providing 1 to 5 Pulse settings of supplemental oxygen.

Weighing just 4.8 pounds including the standard 8-Cell Single battery, the Inogen One G3 portable oxygen concentrator is the smallest and lightest concentrator that will produce up to 5 settings of supplemental oxygen. This State-of-the-Art oxygen concentrator is light enough to carry and boasts a long battery life, meaning that you alleviate the need to manage tanks.  The compact G3 oxygen machine provides an unlimited supply of medical grade oxygen so you never again worry of running out of O2 when you leave the house. The unit has four pulse flow settings from 1-5 to accommodate a vast majority of oxygen therapy patients. 

The unit measures just 8.75 inches in length, 3 inches in width, and 8.25 inches in height (includes 8-Cell battery).  As a comparison, the G3 concentrator is similar in height and length to the size of an iPad! Going places has never been simpler when you have the lightweight and compact Inogen One G3 portable oxygen concentrator to take along with you.

Equipped with Intelligent Pulse Dose Delivery Technology, the G3 portable oxygen concentrator ensures oxygen therapy is delivered efficiently and effectively during all phases of daily activity and during periods of sleep or rest. An extremely sensitive breath detection technology contained within the G3 portable concentrator ensures oxygen is delivered within the first phase of inspiration - where oxygen has the most effect on lung gas exchange. Meaning? The G3 POC works very well in providing you with the oxygen you require.

The Inogen One G3 POC is intended for use everywhere, as it is your single solution oxygen concentrator. The unit comes with both an AC charger and DC Charger allowing you to use it at home and bring it on the road. You’ll never need to switch over from your stationary home oxygen to your personal portable oxygen. The same goes for daytime use and nighttime use: the Inogen One G3 oxygen concentrator is powerful enough for both.  


Intelligent Delivery Technology at Night

  • Unlike traditional oxygen systems, such as portable tanks, or even other portable oxygen concentrators, the Inogen One G3 is proven to provide oxygen to users during rest, exertion, and sleep.
  • Intelligent Delivery Technology is highly flexible to your changing environments and automatically adjusts the oxygen delivery to promote increased oxygen delivery during sleep for most patients.
  • Typically your breath rate slows down as you sleep and perhaps, becomes more shallow. As this happens, Inogen’s Intelligent Delivery Technology increases each bolus size so you receive the same amount of oxygen per minute.
  • Intelligent Delivery Technology detects even shallow mouth breaths at night, and triggers a bolus dose based on a fixed minute volume.

Have a favorite vacation spot?  Would you like to visit a loved one in another state? The G3 oxygen concentrator portable is the ideal therapy for those who enjoy traveling. It has been approved by the FAA  for use on all commercial airlines.

*Airline policies for traveling with an oxygen concentrator vary. Patients need to check with their airline before flying with Inogen G3. 


For true freedom and mobility, the G3 POC comes standard with a 8-Cell battery which offers you up to 4 hours  (seting of 2) of battery life.  

Want more battery life?  You can purchase  the G3 Portable Oxygen Concentrator with a optional 16-Cell battery upgrade which will provide up to 9.5 hours of extended battery life. Please call toll free at 1-800-958-0192 for details.

Do you have extra G3 batteries you would like to keep charged? Inogen offers an optional external battery charger that will charge both the 8-Cell and 16-Cell battery. The optional External Desktop Battery Charger is the perfect accessory for those on-the-go.  


G3 Single Battery Duration:

  • Setting 1 - Up to 4.5 Hours
  • Setting 2 - Up to 4 Hours
  • Setting 3 - Up to 3 Hours
  • Setting 4 - Up to 2 Hours
  • Setting 5 -  Up to 1 Hour

Inogen One G3 Portable Oxygen Concentrator Frequently Asked Questions

How small is the Inogen One G3 portable oxygen concentrator? 
The Inogen One G3 is Inogen’s smallest portable oxygen concentrator. It weighs a just 4.8 pounds with the 8 Cell Battery and stands just 7.25″ W x 3.0″ D x 8.25″ H. It is designed to be worn over your shoulder like a handbag, briefcase or a purse. A backpack option is available as an optional accessory.

What is included in the Inogen One G3 standard oxygen concentrator package? 
System Includes: Concentrator Machine, (1) 8 cell Single Battery, AC Power Supply, DC Power Cable, Carry Bag, User Manual, Warranty Periond is 3 years. 

What is the maximum oxygen output of the G3 concentrator? 
The Inogen One G3 POC offers pulse flow only settings 1-5. The G3 is not a continuous flow concentrator.

What is the O2 concentration of the Inogen One G3 oxygen machine? 
The oxygen concentration of the G3 is 90% +/- 3% on all settings. The G3 is equipped with an Oxygen Sensor and will alarm should the O2 concentration go below therapeutic range.

Does the Inogen One G3 portable concentrator have an internal battery? 
The Inogen One G3 does not have an internal battery. It runs off of an external battery cartridge or when the unit is connected to an AC or DC power supply. The battery cartridge is easily inserted and disconnected with simple push button operation.  Swapping out batteries is a breeze. Note: Inogen offers two differenct size batteries for the G3. A lightweight, single 8-cell battery helps keep the weight of the unit under 5 pounds and a powerful, double 16-cell battery is available for those wanting more battery life. Extra batteries are available at time of purchase or as replacements down the road. With the 16-cell double battery, the G3 weighs a mere 5.8 pounds.

What is the expected battery life of the Inogen One G3 with Single Battery?

  • Setting 1 - Up to 4.5 Hours
  • Setting 2 - Up to 4 Hours
  • Setting 3 - Up to 3 Hours
  • Setting 4 - Up to 2 Hours
  • Setting 5 - Up to 1 Hour



Can the Inogen One G3 be charged with the DC Power Supply? When connected to the DC Power Supply, the Inogen One G3 can power your unit and recharge its battery no matter the battery size. The battery will need to be connected to the unit in order for it to charge. To charge the G3 batteries without being connected to the unit, you will be in need of the optional external battery charger.

Is the Inogen One G3 portable oxygen concentrator FAA approved for use on an airplane? 
Yes. Note: Prior To Traveling by Plane: Check with your airline at least two weeks in advance regarding their policies for use of Portable Oxygen Concentrators.

What is sleep mode technology? 
The Inogen One G3 POC utilizes a sleep mode technology. The sleep mode technology increases the machines sensitivity to detect a more shallow breath. This allows patients to sleep with the Inogen One G3. The G3 is not recommended for use with a CPAP or BiPAP machine.  


Specifications of the Inogen One G3 Portable Oxygen Concentrator with Single Battery:

  • Dimensions:  8.75 W X 3″ D X 7.25″ H
  • Weight:  4.8 lbs with 8-Cell Single Battery
  • Flow Rate:  Pulse Setting 1 - 5
  • Warranty:  3 Years Device; 1 Year Columns/Accessories
  • FAA Approved:  Yes 







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 Product Reviews

  1. Very easy to use

    Posted by Beth King on 19th Mar 2019

    We bought this for my 82 year old mother. She has a hard time seeing and isn't very good at working anything technical. She is doing really well with this unit. We're very pleased!

  2. Works well.

    Posted by John K. on 14th Nov 2018

    I like my new G3. It’s light weight enough to carry and the battery life works for me. I got the smaller battery so the device weighs less. I recommend calling the staff at this company. They will take time to discuss your needs and help you figure out which model and package will work best for you. They also have the best pricing that I was able find. Call them and you will be glad you did.


    Posted by Ruth Hurich on 4th May 2017

    My husband LOVES his machine. The down for me is that it only comes with ONE BATTERY. I just ordered a second at $335 and battery charger at $275. Don't get me wrong. The hubby is worth it. I just work in higher education and monies are not easily and readily available. Maybe throw in a free battery for Veterans and Educators ;-D

  4. Happy with my purchase

    Posted by Ursula on 29th Mar 2017

    The Inogen G3 is smaller and lighter and does not leave me stressed out getting low on oxygen like my bottles did. I have so much more freedom and less worry. I actually go places now that I would never gone with my oxygen bottles. I simply plug the machine into my car and I can be gone all day. Great service from a very knowledgeable staff!

  5. Very Satisfied

    Posted by Karl O. on 20th Mar 2016

    My first machine really felt heavy. It even affected my balance when I tried using it on my walker. This one is so light I hardly notice it. It works just fine. The battery last about 6 hours for me and I'm glad I took advantage of the battery bundle price I was offered.

  6. Very Nice Portable Oxygen Machine

    Posted by Margaret P. on 8th Jan 2016

    I have been enjoying my new Inogen G3 oxygen concentrator. It has allowed me to do the simplest of things that were difficult before. I can now run my own errands and I have even traveled to visit relatives. At first I wished it was a bit quieter but I guess now I'm used to it and it's not too noisy.

  7. This Portable Oxygen Concentrator is a Life Saver!

    Posted by Richard on 20th Feb 2014

    I am truly enjoying my Inogen One G3! This oxygen machine has given me my life back. The unit is small, lightweight, quite, and very simple to carry. I'm glad I decided to purchase an extra battery and swapping them out is a piece of cake. I highly recommend this portable oxygen concentrator to anyone looking for a portable oxygen system that will enable them to be more active. I also would like to thank Todd for all his time in helping me find the right unit and for answering all my questions. Portable Oxygen Solutions is a great company and employees are very personable people with a great deal of knowledge. Excellent company!!

  8. Greatful I found the Inogen G3 portable oxygen concentrator for sale

    Posted by Jerry on 4th Feb 2014

    I have only had a short time and I am just getting used to having this portable concentrator. It is awesome so far. Its quite, light, and I am finding that the single battery lasts plenty long for me. I still may consider an extra battery down the road. I am traveling to Oklahoma in a few weeks to see family and I can't wait for them to see this concentrator. They are so used to seeing me drag tanks around. A big thank you to Todd who is incredibly knowledgeable and helpful. Your company is a pleasure to contact every time! Thank you!


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