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Inogen One G3 Portable Oxygen Concentrator

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  • high pulse output
  • small and lightweight 4.8 lbs
  • medium battery life, 4 hours
  • two battery options
  • AC power, DC power or battery
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Item# Description Size Price

Concentrator with One 8-Cell Battery



Concentrator with One 16-Cell Battery




Concentrator with One 8-Cell Battery and One 16-Cell Battery




Concentrator with Two 8-Cell Batteries




Concentrator with Two 16-Cell Batteries





What Comes in the Box?

Inogen Bundle

Standard Bundle Components

  • Inogen One G3
  • AC Power Adapter
  • DC Power Adapter
  • Standard 8-Cell Battery
  • Shoulder Strap
  • Carry Bag
  • 7 Foot Cannula (Salter Labs)
  • User Manual
  • 3 Year Machine Warranty

Inogen One G3 Portable Oxygen Concentrator

G2 and G3 Comparison
Features of the Inogen One G3 Portable Concentrator
Inogen One G3 Carry Bag

Inogen One G3 is a portable oxygen concentrator that weighs 5.25 pounds, including the standard battery and carry case. The lightweight and small design of the G3 Concentrator allows the freedom and independence that they are missing when using traditional oxygen therapy devices. This portable oxygen concentrator can be used for stationary oxygen, portable oxygen and for traveling. Approved by the FAA for airline travel, the Inogen G3 Concentrator is can be powered from three separate power sources. These power sources include a rechargeable lithium ion battery, AC power from your home or office, or DC power from your car, boat, or RV. The AC power supply is auto sensing, allowing world wide use when traveling. The oxygen flow is pulse dose with five settings from 1 to 5. Oxygen concentration levels are from 87 to 96 percent with a maximum flow of 840 mL. Noise output is a modest 39 decibels. The G3 Oxygen Concentrator is 24/7 capable for both day and night while on extended vacations.

G3 Portable Oxygen Concentrator is one of the lightest and smallest portable concentrators on the market. The concentrator by itself weighs only 3-1/2 pounds. Its small size is easier to carry than most of its competitors. Manufactured by Inogen, the G3 is sleeker and more efficient than the older and very popular G2. (pictured to the left in a comparison with the G3) The G3 employs breath detecting pulse flow oxygen, which optimally conserves energy usage and time between recharging.

Inogen One G3 Oxygen Concentrator provides Sleep Mode Technology that adapts to individual patient needs. Replace your cumbersome and heavy oxygen tanks that constantly need refilling with an Oxygen Concentrator that can operate 24 hours a day, 7 days a week when you need it. No more exchanging or refilling heavy oxygen tanks or cylinders. No more bothersome regulators that require frequent adjustments. Just turn on and go!

Summary of G3 Components

  • Portable concentrator, offering 840 mL maximum oxygen flow.
  • AC power adapter that is world wide auto sensing.
  • DC power adapter allows the unit to be powered by an external 12 V battery source. The DC power input cable connects directly to auxiliary DC power supply.
  • Rechargeable lithium ion battery. Standard battery is 8-cell while the upgraded battery is 16-cell.
  • Carry bag is small, sleek and provides a protective cover with a handle and adjustable shoulder strap - no cart is required.
  • 7 foot cannula from Salter Labs which is soft and quiet. Item #1600G.
  • User manual that provides instruction for setup and operation.

Features & Benefits

  • Lightweight and small size offers easy portability.
  • Choose between to different battery options, long lasting or lower weight.
  • Equipped with four settings of breath detecting pulse oxygen flow which conserves energy usage and recharging time.
  • Noise output is 39 decibels, significantly less than human conversation.
  • Provides Sleep Mode technology that adapts to individual patient needs during sleep.
  • Has the ability to operate 24/7, delivering the prescribed oxygen you need to be healthy
  • Eliminates the need to exchange or refill heavy oxygen tanks or cylinders.
  • FAA approved for in-flight operation.
  • If you are looking for an Inogen One G3 for sale, this is the ideal single solution for oxygen at home, away and while traveling.

Compare the Product Bundles

Inogen One G3 Batteries

Concentrator with One 8-Cell Battery (standard bundle)

  • Weight: 5.25 lbs. (concentrator, battery, carry case)
  • Battery Duration: 4.5 hours (fully charged battery at setting 2)
  • Battery Recharge Time: 2 to 4 hours

Concentrator with Two 8-Cell Batteries

  • Weight: 6.55 lbs. (concentrator, batteries, carry case)
  • Battery Duration: 9 hours (fully charged battery at setting 2)
  • Battery Recharge Time: 4 to 8 hours

Concentrator with One 8-Cell Battery and One 16-Cell Battery

  • Weight: 7.6 lbs. (concentrator, battery, carry case)
  • Battery Duration: 13.5 hours (fully charged battery at setting 2)
  • Battery Recharge Time: 6 to 12 hours

Concentrator with Two 16-Cell Batteries

  • Weight: 8.65 lbs. (concentrator, battery, carry case)
  • Battery Duration: 18 hours (fully charged battery at setting 2)
  • Battery Recharge Time: 8 to 16 hours

Product Specifications

Inogen One G3 Oxygen Concentrator

Battery Run Time Chart

Manufacturer Logo

Size and Weight

  • Width: 8.75 Inches
  • Height: 7.25 Inches
  • Depth: 3 Inches
  • Concentrator Weight: 3.5 lbs.
  • 8-cell Battery Weight: 1.3 lbs.
  • 16-cell Battery Weight: 2.35 lbs.
  • Carry Case Weight: 4.5 lbs.


  • Oxygen Flow: Pulse
  • Maximum Output Flow: 840 mL.
  • Oxygen Concentration: 87 to 96% at all settings
  • Maximum Outlet Pressure: 25 psi
  • Operating Altitude: 0 to 10,000 feet above sea level


  • Average Power Consumption: 40W.
  • Power Requirements: Universal Power Supply: AC Input: 100 to 240 VAC, 50 to 60 Hz, Auto-Setting: 1.0A
  • DC Input: 13.5-15 VDC, 10A.
  • DC Output: 19VCD, 5.0A max.
  • Rechargeable Battery: 12V to 16.8V
  • 8-Cell Battery Duration (with full charge at setting 2): 4.5 hours
  • 8-Cell Battery Recharge Time: 2 to 4 hours
  • 16-Cell Battery Duration (with full charge at setting 2): 9 hours
  • 16-Cell Battery Recharge Time: 4 to 8 hours
  • Noise: 39 dBA.
  • Warm Up Time: 2 Minutes
  • Inogen One G3 is FAA-approved for airline travel.

Manufacturing and Dependability

  • Manufacturer: Inogen One
  • Brand: G3
  • Made in USA
  • HCPCS code: E1390
  • Expected Compressor Life: 20,000 to 30,000 hours, a leader in the industry
  • Warranty: 3 years machine, 1 year sieve beds, 1 year accessories. See Inogen One manufacturer limited warranty statement for details.



Inogen One G3 Concentrator Resources

Additional Information and Resources

Found a lower price somewhere else? Call us 800-397-5899 or email us at [email protected] for price matching!

To be compliant with current FDA regulations, we require a prescription for selected Portable Oxygen Concentrators, Home Stationary Concentrators and Pulse Oximeters. Prescriptions are NOT required for replacement parts and accessories. If a prescription is required for an item in your order we will inform you of the requirement and ask you how the prescription will be provided.

Prescriptions may be sent via:
Fax to: 1-801-733-5797
Email to: [email protected]
Mail to: 7910 S 3500 E Suite C, SLC, UT 84121

If you are unable to obtain a copy of your prescription we are happy to contact your doctor and request the prescription on your behalf.

Worry Free Purchasing
Inogen Reseller Certified Oxygen Concentrator Specialist Seal

At Vitality Medical, our goal is to bring you quality oxygen concentrators at affordable prices. To make your purchase easier, we have created several programs to get you started.

Rental Program - Now you can try the Inogen One G3 before you buy it, just pay a weekly rental fee.

Buy Back Program - Upgrading from a G2 concentrator? Sell it back to us. Contact us for details.

Loaner Program - Need to set-up a repair? We'll let you borrow one of our concentrators while yours is being repaired.

Certified Oxygen Specialists - To better serve you our staff is certified on all of our oxygen solutions.

Product Highlight Videos

Inogen G3 Portable Oxygen Concentrator Review (2:44 minutes)

Video Transcription

Dr. Kennedy: We all live with an image of ourselves as we were, not always as we are. Admitting to infirmities is succumbing to our and infirmities.

I love golf. I've been playing golf since I was 10 years old, and that's my ultimate goal is to be able to go back down to the golf course practice range and make the golf ball do what I could make it do in years past. Just supplemental oxygen, you know, is critically important to reach the goal I have for myself.

I went to the internet and I discovered that there were indeed lighter units which were truly portable and ultimately came to Inogen. The portable concentrator weights four-and-a-half pounds. The big unit I use at night is something that my wife and I can pick up and move around if we need to. Everything was more compact. Everything was simpler in terms of manipulation of the controls and it has been a godsend - physically something I can use when I need it.

Craig: When we started, Peter {Dr. Kennedy} really had difficulty, even just walking a block or two down the road on a general walk. I believe the Inogen One product has been tremendous impact on Peter and our ability to work out. Its lightweight, we've had it on our walks. Sometimes we even do some, what I would say, a "hurry-up" and more spring-like walk. We've had in the pool. We've had here shadow boxing. With the Inogen product, we've been able to increase that from baseline of 55 to 60 seconds on around anywhere between 80 to 90 seconds.

Dr. Kennedy: I couldn't be happier. As a consumer I'm delighted. I got a new set of golf clubs that I bought six months ago and I'm gonna use them.

Additional Information

Additional Information

Manufacturer Inogen
Ships Free Yes

Top Rated Customer Reviews

See All Reviews
Lightweight Portable Concentrator
The Inogen G3 concentrator provides me with a low weight solution. Not only is this the smallest portable I have seen, it is also the least weight--less than 5 pounds with the battery. It takes a few minutes to get the concentrator to ramp-up to the desired concentration level. Three sixteen cell batteries will keep the concentrator going for a full 24 hours!
Product Rating
Review by Sammy / (Posted on 2/20/2013)
Great Machine but no support
Great machine. The Inogen G3 is a lightweight solution and I would recommend it. However, both Inogen and Vitality Medical offer little to no supporrt if something is wrong, even when Brand new. Had to buy a replacement part (BA306) from another supplier after weeks of complaining the original part was defective.
Product Rating
Review by Simon / (Posted on 5/22/2014)
Baldivis, Western Australia
Good, with one Exception
We are disappointed with the "popping" sound the Inogen makes. It will not be suitable for church, movies, etc. because of this noise. Also, the stated weight was somewhat misleading since it is shipped with the larger battery which is considerably heavier than 5 pounds. So we had to order the smaller battery.
Product Rating
Review by Jean / (Posted on 7/22/2013)
Big improvement to the Inogen G2
The new Inogen G3 model is much smaller and less weight than my old G2. It does seem just a tad louder than the G2, but it is a great trade-off for less weight and smaller size. I absolutely love the carry bag design, almost like a wrap-around skin for the concentrator.
Product Rating
Review by Angie / (Posted on 2/20/2013)
Every I had Hoped For!
I have had my new InogenG3 for a couple of weeks now and I am happy to report that it is everything I had hoped for and more! I already had a portable that weighed 10lbs but even though it was equipped with a shoulder strap, it was too heavy for me to carry and I had to use the cart to pull it around. I wanted a little more freedom and convenience and I spent a great deal of time researching my options. What InogenG3 offered seem too good to be true but I went ahead and ordered it and hoped for the best and that's what I got... the best! I highly recommend it!
Product Rating
Review by Susan / (Posted on 8/30/2013)
Excellent.....more than I expected
I'm 68 years old and never saw this coming....The Inogen One G 3 is a great
unit light weight, east to use and carry...I elected to purchase the backpack. It's a
breeze to use....We cruise a lot and use it 24/7....Vitality Medical receives a better rating than the Inogen One....Have already recommended them to a friend....6 weeks and 2 cruises
Product Rating
Review by glafl45 / (Posted on 5/28/2013)
Lighter weight but louder.
It is lighter weight which is what I was looking for, but it's much louder and I miss the handle on top like the G2 which enabled me to carry it without being in the black bag. Not sure I would recommend it over the G2.
Product Rating
Review by Julia McFadyen / (Posted on 8/6/2013)
Very Portable, easy-to-use POC
The Inogen One G3 Portable Oxygen Concentrator is a very lightweight, and user-friendly, lifeline for traveling oxygen users.
Product Rating
Review by POC User Husband / (Posted on 10/21/2013)
Irvine, CA
The only problem I have experienced so far is a recurring message that the nasal cannula is not connected properly. Ihave tried a couple of different cannula and this problem continues to come up several times per day. Otherwise this G3 seems to have been a very good purchase for me.
Product Rating
Review by lee / (Posted on 7/17/2013)
Livingston , TX
Great gadget suits my needs completely!
Product Rating
Review by Micky / (Posted on 9/22/2013)
I ordered the unit, and Vitality Medical were very professional with shipping in the shortest possible time and keepin me informed of the status of my oder. This is a wonderful product and I am using it in the car, at my office, when I travel by air, and it is inconspicuous, silent and works very well! Great product!
Product Rating
Review by HORATIUS DA GAMA ROSE / (Posted on 2/16/2014)
Only criticism--a little noisy
great so far--walk a lot and light enough to carry easily--especially in backpack--with 16 cell battery
Product Rating
Review by Twit / (Posted on 4/25/2014)
Inogen One G3
Love it so far. Will probably get the backpack as I didn't get one when I bought this concentrator.
Product Rating
Review by Papa / (Posted on 6/2/2014)
Jacksonville, FL
So far the unit exceeds expectations. I especially like the long battery run time.
so far the unit exceeds my expectations. A little loud. I like the long battery run time--excellent!
Product Rating
Review by DaveJr / (Posted on 7/12/2013)
I would recommend it .
The G3 meets all of my needs . I travel with it in ways I could not do before. I mostly hand carry it, but sometimes its on my shoulder. Good product.
Product Rating
Review by G3 / (Posted on 8/16/2013)
Community Q&A

Product Questions

Will medicare pay or help pay for this
i bought G3 two month ago
but have a problems.
it cann't detect breathe and pulse xoygen flow
i think breath recognition sensor not working
i have to use this machine always
plz anser me ASAP.
first of all, send it you?
can inogen one g2 be shipped to india ? and if yes what will be the delivery period?