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Inogen One G3 Portable Oxygen Concentrator with Lithium Ion Battery


By Inogen
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    Availability: In stock

  • high pulse output
  • small and lightweight 4.8 lbs
  • medium battery life, 4.5 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

Product Details & Information

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

Manufactured by Inogen, the Inogen One G3 system is one of the lightest and smallest portable concentrators on the market weighing 5.25 pounds (including the standard battery and carry case), 3.5 pounds by itself, 4.8 pounds for device and battery. The design allows the freedom and independence that are missing with traditional devices. This portable concentrator can be used for stationary or portable oxygen for traveling. The Inogen G3 Concentrator can be powered from three separate power sources: a rechargeable lithium ion battery, AC power, or DC power. The AC power supply is auto sensing, allowing worldwide use. 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. It is capable for use for both day and night while on extended vacations.

The G3 is sleeker, slimmer and more efficient than the G2. (pictured to the left in a comparison). 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 needs. Replace your cumbersome and heavy oxygen tanks that 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

  • 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.
  • Rechargeable lithium ion battery.
  • Carry bag provides a protective cover with a handle and adjustable shoulder strap.
  • 7 foot cannula from Salter Labs which is soft and quiet. Item #1600G.
  • User manual that provides setup and operation instruction.

Features & Benefits

  • Lightweight and small size offers easy portability.
  • Different battery options, long lasting or lower weight.
  • Four settings of breath detecting pulse oxygen flow which conserves energy and recharging time.
  • Noise output is 39 decibels, significantly less than human conversation.
  • Provides Sleep Mode technology that adapts to individual needs during sleep.
  • Has the ability to operate 24/7
  • Eliminates the need to exchange or refill heavy 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.

Product Specifications

Inogen One G3 Oxygen Concentrator

Battery Run Time Chart

Manufacturer Logo


  • Oxygen Flow: Pulse Dose: Settings from 1 - 5
  • Maximum Output Flow: 1050 ml/min
  • 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
  • Noise: 39 dBA.
  • Warm Up Time: 2 Minutes
  • Inogen One G3 is FAA-approved for airline travel.

Manufacturing and Dependability

  • Manufacturer: Inogen
  • 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.



Product Resources

Manuals and Documents

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

To be compliant with FDA regulations, a prescription is required for selected devices. Prescriptions are NOT required for replacement parts and accessories. If a prescription is required for an item in your order we will inform you then 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 products 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 Inogen G2? 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 Videos


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

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 with Lithium Ion Battery


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
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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 you have any offices in San Diego county? Also, if something goes wrong and device stop working, is there any repair in San Diego area or close to it?
Do the g2, G3, and g4 all make the clicking noise when running
What kind of warranty do you offer?
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?
If this equipment can help to make life easier and improve the quality of life who pays? Medicare/Medicaid?patient responsibility.
is there a back pack for the Inogen 1?

Product Reviews

Average Rating:
31 reviews
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1-5 of 36

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I can't zip the carrying case completely shut. One corner will not stretch enough to allow full closure. As a result, the unit is unstable when resting on the floor. Furthermore the ends of the zipper sometime end up beneath the unit, tipping it. I've taped them to the case to prevent that. I'll be on Amtrak for 2000 miles. Hope my roomette has appropriate power outlets.
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.

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