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Inogen One G5 Portable Oxygen Concentrator

Brand/Manufacturer: INOGEN

The Inogen One G5 offers the most oxygen-per-pound for a portable oxygen concentrator on the market today! With its compact and lightweight design, the Inogen G5 provides 1-6 flow settings and is designed for 24-hour use, dramatically increasing your patients’ independence. The user interface of G5 POC has been designed with easy-to-read LCD displays and simple control functions.

Why Choose Inogen One G5 Portable Oxygen Concentrator?

  • Tankless O2 Delivery - Reduces overheads associated with O2 cylinders, deliveries, and storage space
  • Bluetooth Monitoring - Via the Inogen Connect app, customers' phones will provide information such as POC diagnosis and therapy tracking
    (Check out the Inogen Connect App User Guide)
  • Hassle-free Sieve Beds - The easy-to-detach sieve-bed design allows customers a hassle-free change of replacement columns.
  • Small and Lightweight - Just 4.7 Lbs.!
  • 1-6 Flow Settings - 6 Variations of oxygen fow settings available in a compact POC
  • Intelligent Pulse Oxygen Delivery System - Delivers oxygen according to your breathing pattern
  • 24/7 Use - Designed for 24 Hour long use
  • Easy-to-Read Display - Easy to read LCD display with large icons

What Does The Inogen One G5 POC Include?

  • Concentrator, 8 cell or 16 cell Battery
  • AC Power Supply
  • DC Power Cable
  • Carry Bag
  • User Manual

What to buy with Inogen One POC?


How to Operate Inogen G5 Portable Oxygen Concentrator?

  1. Place the Inogen One G5 in a well ventilated location.
  2. Air intake and exhaust must have clear access. Locate the Inogen One G5 in such a way that any auditory alerts may be heard. Always operate the Inogen One G5 in an upright position
  3. Ensure particle filters are in place at both ends of device.
  4. Insert the Inogen One G5 battery by sliding battery into place until the latch returns to the upper position.
  5. Connect the AC input plug to the power supply. Connect the AC power plug to the power source and connect the power output plug to the Inogen One G5. The green LED on the power supply will be illuminated and a beep will sound from the concentrator.
  6. Connect the nasal cannula tubing to the nozzle fitting. Nozzle fitting is located on the top of the Inogen One G5. The use of a single lumen cannula up to 25 feet in length is recommended to ensure proper breath detection and oxygen delivery. Additional titration may be needed to ensure proper oxygen delivery when using a particular cannula, consult your physician.
  7. Turn on your Inogen One G5 by pressing the ON/OFF Button. A single short beep will sound after the Inogen logo is displayed. Please wait, the loading icon will appear while the concentrator starts up. The display will indicate the selected flow setting and power condition. Following a brief start-up sequence, a warm-up period of up to 2 minutes will initiate. During this time period, the oxygen concentration is building but may not have reached specification. Additional warm-up time may be needed if your Inogen One G5 has been stored in extremely cold temperatures.
  8. Set the Inogen Concentrator to the flow rate prescribed by your physician or clinician. Use the (+) or (-) setting buttons to adjust the Inogen One G5 to the desired setting. The current setting can be viewed on the display.
  9. Position the nasal cannula on your face and breathe through your nose. The Inogen One G5 will sense the onset of inhalation and deliver a burst of oxygen at a precise time when you inhale. The Inogen One G5 will sense each breath and continue to deliver oxygen in this manner. As your breathing rate changes, the Inogen One G5 will sense these changes and deliver oxygen only as you need it. At times, if you inhale very quickly between breaths the Inogen One G5 may ignore one of the breaths, giving the appearance of a missed breath. This may be normal as the Inogen One G5 senses and monitors the changes in your breathing pattern. The Inogen One G5 will normally sense the next breath and deliver oxygen accordingly.

Inogen G5 User Documents

Compare Inogen Portable Oxygen Concentrators

SpecificationsInogen One G3Inogen One G4Inogen One G5
Flow SettingsPulse Dose: 1-5Pulse Dose: 1-3Pulse Dose: 1-6
Noise Level39dBa40dBa38dBa
Weight4.9 Pounds2.8 Pounds4.7 Pounds
DimensionsHeight: 8.25"Height: 7.2"Height: 8.15"
Length: 8.75"Length: 5.91"Length: 7.19"
Width: 3"Width:2.68"Width: 3.26"
*All Including Single Battery*
Battery DurationSingle Battery: Upto 4.7 Hrs.Single Battery: Upto 2.7 Hrs.Single Battery: Upto 6.5 Hrs.
Double Battery: Upto 10 Hrs.Double Battery: Upto 5 Hrs.Double Battery: Upto 13 Hrs.
Intended UseAll 3 Oxygen Concentrators can be purchased for Stationary, Portable as well as Travelling uses.
They are also FAA(Federal Aviation Administration) approved for use on aircrafts.
Power SensingAC power supply 100-240V, 50-60Hz (with auto-sensing to allow worldwide use)
DC power supply for mobile use in car or airplane
WarrantyAll Inogen Portable Oxygen Concentrators are entitled to a 3-year standard warranty
Shop @ HPFY
Buy Inogen G3
Buy Inogen G4
Buy Inogen G5

Inogen One G5 Portable Oxygen Concentrator Specification

Height8.15" (includes single battery) 
Oxygen FlowPulse dose delivery system
Six flow settings 1, 2, 3,4,5,6
PowerAC Power Supply 100-240V, 50-60Hz
(auto sensing to allow worldwide use)
DC Power Cable: for mobile use in car
BatteryDuration (single battery): Up to 6.5 hours
Recharge up to 3 hours with AC or DC power
Duration (double battery): Up to 13 hours
Recharge up to 6 hours with AC or DC power
Noise Level38 dBA
OperationSimple control functions and easy-to-read LCD display
Inogen Connect App
UseDesigned for 24/7 use and conforms to all applicable FAA requirements
for POC use on board an aircraft
Weight4.7 lbs. (includes single battery)

G5 O2 Concentrator Warranty

5 years Warranty

Customer Reviews


ItemName - now     10/16/2021

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UserName - now     10/16/2021

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Robert     07/27/2020

What is the max output of oxygen  in liters?


Customer Care    07/28/2020

Oxygen Concentrator provides 5 liters per minute continuous flow oxygen for your oxygen therapy.


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What is HPFY’s return policy?

Customer satisfaction is our top priority. We stand behind our products. If the merchandise you received is defective or not what you expected it to be, and you wish to return the item, please submit a return request in the My Account section of our website, contact our Customer Service department at (866) 316-0162 / (203) 616-2850 or email us.

  1. Merchandise must be returned within 30 days of the receipt of your order. Returns are not accepted after 30 days.
  2. Items (including parts and accessories) must be returned in new, unused, and resalable condition in its original packaging.
  3. Before returning any product, the buyer must obtain a Return Authorization Number (RA#) from a customer service representative. With your RA# you will receive a prepaid return shipping label.
  4. Orders returned without obtaining an RA# will be entitled to receive only "In-Store Credit" that can be used towards future purchases.
  5. Return orders are subject to a 20% restocking fees.
  6. All custom orders and hygienic items are non-returnable. Refer to the “Non-Returnable Items” section for further details.
  7. Returns will be reviewed and inspected before issuing credit. Please allow 3 to 4 weeks for processing. The credit will be applied to your original method of payment.
  8. If the return is the result of a defective product or shipping error, we will refund the entire purchase amount and return shipping costs.

Which products are Non-Returnable?

Due to the hygienic nature of some items, they are non-returnable. The items listed below are non-returnable:

  1. All hygienic items.
  2. Opened personal care items.
  3. Anything opened, used, or tried on.
  4. All customized items.
  5. Besides these, items that have the “non-returnable” phrase on the website.

We reserve the right to make adjustments due to errors, changing market conditions, product discontinuation or typographical errors in advertisements. Images on the site may not always reflect the actual product. Footrests or leg-rests are not included with wheelchairs unless specified.

How do I receive a return authorization number?

You can submit a return request by logging into your account. You will receive the Return Authorization Number (RA#) details in the email within 2-3 business days.

  • Login to your account
  • Go to “order history”
  • Click on “return order”
  • Fill out the return form and Submit it

If you do not have an email address, we will make other accommodations for RA# Details. Write the RA# on your label affixed to your package prior to shipment.

How long does it take to receive a refund?

Please allow 3 to 4 weeks to process the returns. Once the item is received, and inspected, your refund will be processed and automatically applied to your credit card or original method of payment.

Is there any Restocking Fees?

  1. 20% restocking fees will be applied.
  2. Outbound shipping cost is non-refundable.
  3. For orders that qualified for free shipping, $8.99 will be deducted from the refund if the product is returned.

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