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Inogen One G3 Portable Oxygen Concentrator


By Inogen One
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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 Details

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.



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
Oxygen Flow Pulse Flow
Product Comparison

Product Comparison


Inogen One G2 Portable Oxygen Concentrator


Inogen One G3 Portable Oxygen Concentrator


Inogen One G4 Portable Oxygen Concentrator | IS-400

Weight7 Pounds4.8 Pounds2.8 Pounds
DimensionsLength : 10.7 IN.
Width: 3.9 IN.
Height: 9.5 IN.
Length : 8.75 IN.
Width: 3.0 IN.
Height: 8.25 IN.
Length: 5.91 IN.
Width: 2.68 IN.
Height: 7.2 IN.
Flow Settings1 - 61 - 51 - 3
Battery DurationSingle Battery up to 5 hours,
Double Battery up to 10 hours
Single Battery up to 4.5 hours,
Double Battery up to 9 hours
Single Battery up to 2.7 Hours,
Double Battery up to 5 hours
Noise Level< 38 dBA39 dBA40 dBA
View ProductView ProductView Product
Community Q&A

Product Questions

Will medicare pay or help pay for this
can inogen one g2 be shipped to india ? and if yes what will be the delivery period?
Do the g2, G3, and g4 all make the clicking noise when running
is there a back pack for the Inogen 1?
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?

Product Reviews

Average Rating:
31 reviews
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Replacement columns
have to replace every 5 months and they are expensive. would not buy again
This product is only for those not needing 24/7 oxygen.
We bought this hoping to be free of carrying bottles while out and about. This would be ideal for those not needing oxygen 24/7. While out I had to drag bottles out and put on constant flow, this did not put enough oxygen out. We tried to use this little concentrator on a small trip. I ended up taking my mother in to doctor, she was not getting enough air, try to walk. almost pass out. The Pulmonologist said he would NEVER recommend the Inogen One G3 for a patient that can not go without good flow oxygen. Returning Product.
Vitality Medical - Inogen one G3
What an improvement over other alternatives! We use a portable concentrator for travel, and the small size and long battery life transformed our logistics for travel to Europe. The battery life was as advertized, and the small size and weight of both the unit and the batteries made our trip so much easier compared to other portable units. Want also to say that Vitality Medical was outstanding. They were out of stock when we ordered, and went the extra mile to ensure that we got a unit before our trip.
We have used the Inogen One GE for a couple of weeks and find it to be a true blessing to our lives. We now have such great mobility and ease of getting around due to the light weight of this machine. It is so very quiet and so easy to use. We really enjoy the ability to plug it into the car power outlet and have it provide oxygen while recharging the battery. Every single reservation we had about purchasing such a machine has been completely swept away by this truly marvelous oxygen concentrator.
Excellent product.
I am very pleased with the oxygen concentrator it functions well and has given me the freedom to go and do as I please.
Being able to use it on AC at home and DC in the car and batteries when shopping and other outside activities makes it indispensable to me. Not to mention the great price from Vitality!

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