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Inogen One G3 Portable Concentrator with Lithium Ion Battery


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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 - Ships Free!




Concentrator with One 16-Cell Battery - Ships Free!




Concentrator with One 8-Cell Battery and One 16-Cell Battery - Ships Free!




Concentrator with Two 8-Cell Batteries - Ships Free!




Concentrator with Two 16-Cell Batteries - Ships Free!



Concentrator with One 8-Cell Battery - Each
SKU: IS-300-NA


Concentrator with One 16-Cell Battery - Each
SKU: IS-300-NA16


Concentrator with One 8-Cell Battery and One 16-Cell Battery - Each
SKU: IS-300-NA-2-8-16


Concentrator with Two 8-Cell Batteries - Each
SKU: IS-300-NA-2


Concentrator with Two 16-Cell Batteries - Each
SKU: IS-300-NA-16-2



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What Comes in the Box?

Inogen Bundle

Standard Bundle Components

  • Inogen One G3 Portable Oxygen Concentrator
  • AC Power Adapter
  • DC Power Adapter
  • Standard Inogen 8-Cell Battery
  • Inogen Shoulder Strap
  • Inogen Carry Bag
  • 7 Foot Cannula (Salter Labs)
  • Inogen User Manual
  • 3 Year Inogen 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 machines 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 Inogen machine 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 Inogen 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 Inogen oxygen machine 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.
  • Inogen Rechargeable lithium ion battery.
  • Inogen 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.
  • Inogen 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: Inogen 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 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 an Inogen concentrator while yours is being repaired.

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



Inogen One G3 Product Videos


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


Additional Information

Additional Information

Manufacturer Inogen
Ships Free Yes
Oxygen Flow Pulse Flow

Shipping & Returns

Shipping Information

Leaves Warehouse: 1-2 business days - More details
Economy Shipping: Guaranteed 7-10 business days

Returns Information
Refer to our returns policy for more information.
Product Comparison

Product Comparison


Inogen One G3 Portable Concentrator with Lithium Ion Battery


Inogen One G4 Portable Oxygen Concentrator

Weight4.8 Pounds2.8 Pounds
DimensionsLength : 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 - 51 - 3
Battery DurationSingle 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 Level39 dBA40 dBA
View ProductView Product
Community Q&A

Product Questions

Will medicare pay or help pay for this
Question by: chuck on Mar 22, 2015 6:07:00 AM
Hello Chuck,
In an effort to keep our prices low, we do not bill Medicare or insurance companies. Feel free to contact Medicare for information about reimbursement.
Thank you.
Answer by: Shain Gillet (Admin) on Jun 24, 2016 4:01:00 PM
Can the Inogen One G3 be shipped to india? If yes, what is the delivery period?
Question by: shilpa jhawar on Sep 10, 2015 11:17:00 PM
Inogen does not allow shipping outside of the U.S.
Answer by: Shain Gillet (Admin) on Jul 18, 2016 4:02:00 PM
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?
Question by: Theresa on Jul 20, 2016 7:50:00 PM
We only have a single office location in Utah. If you run into any issues with the concentrator, give us a call at 800-397-5899 and speak with a customer service representative. We should be able to file a warranty claim on your behalf.
Answer by: Shain Gillet (Admin) on Oct 18, 2016 2:57:00 PM
Do the Inogen G2, G3, and G4 all make the clicking noise when running
Question by: Ron Drumheller on Apr 9, 2017 8:10:00 AM
There is no clicking noise when operating this concentrator. If you're running into this issue with one of those machines, call our customer service center at 800-397-5899 for assistance.
Answer by: Shain Gillet (Admin) on Apr 10, 2017 8:13:00 AM
I bought the Inogen G3 two month ago but have problems. It can't detect breathe and pulse oxygen flow. I think the breathe recognition sensor is not working properly. I have to always use this machine. Please answer me ASAP. Should I send it back to you?
Question by: eric on Sep 13, 2015 10:40:00 PM
Please call us at 18003975899 and we can help troubleshoot or review options.

Answer by: Customer Service (Admin) on Sep 14, 2015 9:59:00 AM
Your answers regarding Medicare coverage are unclear. While I understand you do not deal with Medicare directly, you certainly must know the conditions under which these products are reimbursable under Medicare.

Will you specify the conditions that Medicare will provide reimbursement and how much they will reimburse, please? Thanks.
Question by: Robert Prettyman on Dec 18, 2017 11:03:00 AM
Because our company is an online retailer and not a medical facility, we do not nor have we ever had information on any conditions regarding Medicare/Medicaid coverage or reimbursement processes. Therefore, we recommend speaking with Medicare directly.
Answer by: Shain Gillet (Admin) on Apr 27, 2018 12:19:00 PM
What kind of warranty does Inogen offer?
Question by: STEVEN A MCGILLIVRAY on Oct 8, 2017 2:40:00 PM
The manufacturer offers a three year warranty for this item.
Answer by: Shain Gillet (Admin) on Dec 12, 2017 10:22:00 AM
wanna to know if i make order now how many days until recevie my order in jeddah , saudi arabia
Question by: ahmed zakarya on Aug 21, 2019 11:39:00 PM
During checkout, customers are able to select shipping speeds and pay for their preferred option. It will provide approximate arrival dates during this time.
Answer by: Jessica Smith (Admin) on Aug 22, 2019 11:41:00 AM
is there a back pack for the Inogen 1?
Question by: Ted Montgomery on Apr 10, 2017 7:30:04 AM
A backpack is available for the Inogen One concentrator. You'll find it at the following page on our website: vitalitymedical.com/ign-one-portable-oxygen-concentrator-system-accessories.html.
Answer by: Shain Gillet (Admin) on Apr 10, 2017 8:23:00 AM
If this equipment can help to make life easier and improve the quality of life who pays? Medicare/Medicaid?patient responsibility.
Question by: Milda Anderson on Jun 23, 2016 5:58:00 AM
Hello Mrs. Anderson, We do not work directly with Medicaid because we are an online retailer.
If the patient is looking for reimbursement, they will need to their local contact Medicare/Medicaid
office either before or after placing the order.
Answer by: Shain Gillet (Admin) on Jun 27, 2016 12:24:00 PM
Related Articles
WARNING: This product may contain chemicals that are known to the State of California to cause cancer, birth defects or other reproductive harm. This product complies with all state and federal safety standards.

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Product Reviews

Average Rating:
33 reviews
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My New Best Friend
The Inogen concentrator arrived just as we headed out for a holiday road trip. I used it in the car, restaurants, at relatives' homes, church services, museums, even in those awfut roadside restrooms! It was quiet and unobtrusive. I got very good at just disconnecting from the AC/DC and taking this large lunchpail-sized concentrator with me. I had to keep an eye on the battery time and had to cut one museum visit short, but usually the battery length was plenty. It is a bit heavy for doing chores around the house and carrying for long periods--perhaps because my heart and legs have become weak. But I feel I have a new lease on life and look forward to getting out more.
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.
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!
Out and about
I carry it on my walker and its light enuf to get it in and out. I do not mind the little clicking sound. Battery lasted a long time I plugged it in and it recharged while I napped. Pray no problems

Noise and weight with larger batteries not good
with longer lasting batteers 16 cell - extremely heavty and hard on the shoulder. after shopping for approx 3 hours the machine's weight leaves me breathless. Also, everyone askes "what's that noice - there is a heave clicking sould and it is annoying to people around you. At least I am not homebound so that is the good part. Also, serviced two timex in first year???
Inogen One G3 Portable Concentrator
My mom liked the product. She is enjoying the concentrator tremendously.

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