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Product Spotlight: Inogen One G5 Oxygen Concentrator - a small device with a clock on it.

Product Spotlight: Inogen One G5 Oxygen Concentrator

What You Need to Know About this Powerful, Portable Oxygen Concentrator 

Do you need help finding a reliable, compact, efficient portable oxygen concentrator? 

The Inogen One G5 Oxygen Concentrator might be precisely what you’re looking for.

As one of the smallest oxygen concentrator packages capable of producing continuous oxygen today, its portability and convenience make it a compelling option for many uses. 

In this product spotlight, we’ll look at the design, performance, included parts and accessories, key features, and warranties to help you determine if this device suits your needs and to help you make an informed purchase decision.

Product Design & Size

The Inogen One G5 Oxygen Concentrator stands out due to its exceptional portability and convenience. 

It is one of the smallest, lightest, and quietest devices available for oxygen delivery, ensuring 24/7 support for those needing respiratory assistance.

Here are the key details about the G5’s design and size:

  • Weight: The G5 weighs 2.1 kilograms with a single battery or 2.6 kilograms with a double battery. This puts it right in the middle of Inogen’s portable models—lighter than the G3 but heavier than the ultra-portable Inogen One G4.

    Still, at less than 3 kilograms, even with the double battery, the G5 remains highly portable.
  • Dimensions: The G5 measures 18.2 centimetres long x 8.3 centimetres wide x 20.7 centimetres high with a single battery installed. With the optional double battery, it measures 18.2 cm L x 8.3 cm W x 22.9 cm H.

    The compact rectangular shape allows it to fit nicely into its custom carrying case—though more elaborate cases are available as additional accessories (more on these options later.)

The Inogen One G5 has simple, intuitive controls that make it easy to operate. 

The control panel includes:

  • An on/off power button
  • A display screen that shows the selected flow setting, battery life remaining, and other status information
  • Plus and minus buttons to adjust the flow setting up or down from 1 to 6
  • An alarm indicator light that flashes if any issues are detected
  • A purity indicator light that blinks if oxygen purity drops below normal levels

The display screen and indicator lights provide easy visibility for everything you need to know about flow settings and device performance—and that doesn’t account for the mobile app either (more on that in the features section.)

Overall, the G5 achieves accessible and intuitive operation in a compact design.


The Inogen One G5 delivers robust performance, making it a leader among portable oxygen concentrators. Here are the critical details about the G5’s capabilities:

  • Flow Settings: The G5 provides a range of 6 flow settings, allowing users to customize the oxygen delivery to their needs. It is also the most powerful Inogen portable model.
  • Pulse Dose Oxygen Flow Delivery: The G5 utilizes pulse flow delivery, which conserves oxygen by providing a pulse at the beginning of each breath when it’s most effective. This also dramatically improves oxygen use efficiency.
  • Battery Life: With the standard single battery, the G5 can operate for up to 6.5 hours on setting 1 or 4.5 hours on setting 2. The optional double battery provides up to 13 hours of use at setting 1. Actual battery life will vary depending on both your concentrator configuration and prescription.
    If you have any questions about whether this concentrator can meet your prescription needs, don’t hesitate to reach out, and we’d be happy to provide more details based on your specific requirements.
  • Charge Time: A full recharge takes around 4 hours for the single battery or 8 hours for the double battery. However, with the external charger, you can easily keep multiple batteries ready to ensure you’re never low on power.
  • Noise Level: At just 38 dB on setting 2, the G5 is extremely quiet. This whisper-soft operation won’t disturb sleep or conversations.
  • Oxygen Concentration: The G5 removes nitrogen from room air and delivers 90-96% oxygen, helping ensure optimal oxygenation.
  • Reliability: The G5 utilizes durable, long-lasting components for years of reliable operation. The columns typically last 2-5 years before needing replacement. There’s also a compelling warranty, but we’ll discuss that later in its own section.

With its excellent combination of customization, battery life, quiet operation and reliability, the G5 sets the standard for portable oxygen concentrator performance.

You can confidently rely on this device to deliver the oxygenation you need all day long.

Included Inogen One Portable Oxygen Condenser Parts and Accessories

The Inogen One G5 comes with everything you need to get started with oxygen therapy right out of the box. 

Here are the parts and accessories that are included with the G5 portable oxygen concentrator:

  • Concentrator unit
  • AC power supply and cord
  • DC power cable supply and cord for your car
  • Rechargeable lithium-ion battery
  • Carrying case with shoulder strap
  • Accessory bag for cannula and other items
  • Nasal cannula
  • User manual

The battery, power cords, and carrying case make it easy to use the G5 at home, in the car, or on the go. 

The nasal cannula provides the connection to deliver oxygen from the concentrator unit.

The Inogen One G5 ships with just enough to get up and running. 

The base kit might be perfect if you’re not out frequently for longer periods or have light to moderate oxygen needs. 

Optional Inogen One G5 Accessories

While the Inogen One G5 comes well-equipped out of the box, Inogen offers additional accessories for customizing and enhancing your portable oxygen experience:

  • Extra Batteries – Extra batteries extend run times. The single battery adds up to 6.5 more hours, and the double battery adds up to 13 more hours on lower settings.
  • External Battery Charger – This accessory charges batteries outside the concentrator, so you can simultaneously charge multiple batteries or have one battery charging while another is in use.
  • Backpack – The custom backpack allows you to hands-free carry the G5 plus extra batteries and accessories with greater security than the over-the-shoulder carrying case.
  • Rolling Cart – The cart provides easy transport of the G5 plus extras while keeping everything together.
  • Carry Bag – An alternative for transporting the G5 around town or your neighbourhood.
  • DC Cable – An extra 12-volt car charger cable for charging on the go.
  • Replacement Filters – Particle filters should be swapped out approximately once per year to maintain airflow.

There are also a range of third-party accessories you can purchase as well. 

These optional extras transform the unit, creating a modular design that makes the Inogen G5 adaptable to each user’s unique oxygen therapy needs.

As mentioned above, the starting package for the Inogen One G5 might be enough for you. 

If you’re unsure which accessories to consider, call us

We’re always happy to suggest a mix of batteries and other accessories to expand upon the base setup and help better accommodate your needs.

Key Features and Benefits of the Inogen One G5 Portable Oxygen Concentrator

The Inogen One G5 provides several standout features that enable flexible, customizable oxygen therapy.

Powerful Pulse-Dose Oxygen Delivery

The G5 utilizes pulse-dose delivery. 

This intelligent delivery technology conserves oxygen by providing a precise bolus only at inhalation when it has the greatest physiological effect. 

This eliminates waste and makes the G5 efficient for all-day portable use. 

For example, pulse delivery allows the 5.7 lb G5 to provide equivalent therapy to a 20 lb continuous flow unit.

Range of Flow Settings

A range of six flow settings tops out at 6 LPM while allowing you to suit your oxygen dose to your situation with a quick adjustment.

For example, you can easily increase the flow when physically active to accommodate increased demand, such as walking around a store or playing with your grandkids, then decrease it while sedentary to conserve battery life while oxygen demands are lower.

This personalization provides empowering flexibility while the convenience makes it more likely that you’ll continue to use your oxygen concentrator.

Long Battery Life

With up to 6.5 hours from the standard battery and extendable up to 13 hours with the optional double or 16-cell battery, the G5 enables all-day portability without tethers or external batteries. 

Take it shopping, on a short trip, or wherever you want. 

The DC charger also means you can charge conveniently at home or in the car when needed. 

If you plan and bring the appropriate charging accessory or invest in a few spare batteries, there’s a good chance your Imogen One G5 can go anywhere you need to go and support you in your adventures.

Quiet Operation

At just 38 dB on setting 2, the G5 is discreet and won’t disrupt conversations, watching TV, or sleep. 

Its whisper-quiet operation enables you to use therapy without drawing the attention of those around you, encouraging you to use it more and see the benefits of its use in more facets of your life than noisier or bulkier units might allow.

Bluetooth Connectivity

The Inogen Connect app pairs with any Bluetooth-enabled smartphone or tablet, allowing you to monitor device status, change settings, and access support materials on the go. 

The connectivity and app make the G5 a truly modern portable concentrator.

This also means you can easily adjust settings while on the move without stopping and physically interacting with your concentrator. 

These intelligently designed features make it easy to see why the Inogen G5 is so popular. 

It delivers a customizable, flexible oxygen therapy experience that integrates seamlessly into virtually any lifestyle with minimal hassle or disruption.

Inogen Warranty Coverage and Terms

Of course, regardless of reputation or quality, a warranty helps add certainty and peace of mind to any purchase—especially when discussing the prices associated with most portable oxygen concentrators

The Inogen One G5 has a comprehensive 3-year warranty on the concentrator unit and parts, protecting you—and your wallet—from defects in materials and workmanship.

Specifically, the 3-year warranty includes:

  • Repair or replacement of the concentrator if it fails due to a manufacturing defect.
  • Repair or replacement of any components that fail, such as the batteries, filters, control panel, etc.
  • Labour and maintenance services related to warranty repairs.

The warranty is valid for three years from the original date of shipment to the user. 

To obtain service, you simply need to contact Inogen’s customer support department. 

They will troubleshoot the issue and coordinate any necessary repairs or replacements.

Some accessories, like the double battery, also have a lifetime warranty for extra coverage. 

Others, like the backpack and extra batteries, have a 1-year warranty.

With comprehensive protection for the concentrator and components, Inogen’s warranty helps ensure you’ll enjoy years of reliable service from your G5. 

Contact customer support if any manufacturing issues arise.

Overall Thoughts

The Inogen One G5 is a leading portable oxygen concentrator due to its lightweight design, long battery life, quiet operation, and flexible flow settings. 

Weighing only 4.7-5.7 pounds, it delivers pulse flow oxygen anywhere you need it for up to 13 hours per charge. 

Intelligent features like the Inogen Connect app provide added convenience.

With a maximum setting of 6 LPM, the G5 adapts to more active lifestyles and changing needs. 

Its whisper-quiet operation at just 38 dB enables discreet use. 

The included accessories, like the carry case and power cords, make the G5 easy to use at home or on the go, while optional and third-party accessories offer modular flexibility to suit nearly any need.

While it’s not the lowest-price option on the market today, it’s a compelling package and likely a worthwhile investment for anyone looking for a portable oxygen concentration with abundant features and a premium user experience.

If you have questions about the Inogen One G5 or other popular portable concentrators, the experts at CPAP Supply are here to help! Contact us today to learn more about which portable oxygen concentrator is right for your needs and lifestyle. We’ll find the perfect solution so you can breathe easy wherever life takes you.

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Prescription Required

Please be advised that a prescription is required for this product.

Rest assured—providing your prescription is hassle-free.

After your order, our customer service team will assist you in the simplest way to submit it.

Your convenience is important to us, and we’re here to help make it a seamless process.

Call us toll-free at +1.855.492.3316 or email [email protected].