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INOGEN One G3 Portable Oxygen Concentrator

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One of the smallest and lightest portable concentrators on the market, INOGEN One G3 takes portability and independence to the next level. G3 is designed to produce 5 different levels of medical oxygen according to your therapy need. The concentrator weighs less than 5 pounds but it is powerful enough to deliver effective and efficient Pulse Dose Oxygen supply, during daily activity or at night. The machine is powered by an extremely long-lasting battery, operating on five different oxygen settings with concentration levels about 90%. Now you can take your concentrator wherever you go – carrying it with one hand, without the need of rolling carts or other supplementary accessories.

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 INOGEN One G3 Portable Oxygen Concentrator

If you’re looking for the highest level of independence and mobility when on oxygen therapy, the INOGEN G3 comes to grant your wishes. You’ll never have to refill  the G3 with oxygen or worry about weight, noise and short battery life. The G3 delivers it all, whether you’re at home or on your next travel adventure. The smallest and lightest portable oxygen concentrator currently available, the INOGEN One G3 comes with everything you need to cover your oxygen needs anywhere and anytime.

The G3 featrures five separate settings of breath detecting pulse oxygen flow, powered by an 8-cell or a 16-cell battery that are recharged quickly. The G3 is the upgraded version of its predecessor, Inogen One G2, being lighter, smaller and more efficient at pulse oxygen flow delivery.

Made to make your life easier



  • Provides pulse dose settings of 1 – 5 LPM
  • Weighs less than 5 pounds with a single battery
  • Easy to carry – the ideal solution for people who lead an active lifestyle
  • Two battery power options: 8 cell single battery, or the 16 cell double battery
  • 8 cell battery lasts up to 4.5 hours, while 16 cell battery lasts up to 9 hours
  • Rechargeable batteries that operate on AC or DC power at the same time
  • Batteries can be charged at home or in a car
  • Quick battery recharge times

Light, portable and quiet

INOGEN One G3 is weighs only 4.8 pounds and produces only 29 decibels! The G3 is so quiet that you’ll barely notice it accompanying you during your daily adventures. The unit also comes with an intuitive LCD display, helping you keep an eye on flow setting and battery life. What’s more, the G3 comes with a convenient carry bag that you can throw over your shoulder and effortlessly transport your oxygen concentrator.

Wearable oxygen therapy tech of the highest class

Lightweight and ergonomic oxygen concentrators of the highest class should present the user a simple, reliable and easy way to conduct oxygen therapy on the go. This is what G3 is engineered for and delivers unlike anything else in its  the category. Easy transportation, reliable therapy with multiple custom oxygen delivery settings – and, of course, unmatched portability!

Adaptive response times

The G3 features delivers oxygen in pulsed dose every time you breathe in. The concentrator intelligently responds to the changes in your breathing pattern, adjusting itself to deliver optimal flow oxygen delivery according to your activity. Whether you’re relaxing or being active, the G3 will detect your breathing rate and increase/reduces bolus size (pulse dose delivery) to make sure that oxygen is not wasted.

Long-lasting batteries

Knowing how important long battery life is when in comes to portable oxygen concentrators (travel oxygen concentrators), the 8 cell battery of INOGEN One G3 lasts up to 4 hours at a setting of 2, while the 16 cell battery can last up to 7 to 8 hours on the same setting! What’s more, G3’s rechargeable Lithium-ion batteries features a significantly faster than average recharge time. The small battery recharges in approximately 4 hours while the large battery in 6 hours.



Flight approved oxygen concentrator

INOGEN G3 comes FAA Approved for usage during flights so you can bring it on the plane as well as on most cruise ships and buses. NOTE: Always contact your airline prior to your flight to confirm any requirements they may have to be sure that they will allow your oxygen concentrator on board


  • Batteries charge whenever sufficient AC or DC Power is available;
  • When using multiple batteries, please be sure sure that each battery is labeled and rotated on a regular basis;
  • Do not leave batteries dormant for long periods of time;
  • Store batteries in a cool, dry place;
  • Store batteries with a charge of 40-50%.

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Package includes

Inogen One G3 Unit
8 cell battery
AC power supply
DC power cable
Carry bag
User manual.


Additional accessories are available separately.

Technical specifications

Technical specifications

Dimensions8.75 inches Wide x 3 inches Deep x 8.25 inches High
Unit weight4.8 lbs with 8 Cell battery; 5.8 lbs with 16 Cell Battery
Alarms/AlertsBattery Low, Replace Column, Check Battery, Oxygen Low, Remove Battery to Cool, Comm Error, Service Soon, Sensor Fail, No Breath Detect, Oxygen Error, Oxygen Delivery Error, Battery HOT, Battery Empty, System HOT, System COLD, System Error
Battery Charging Time:Up to 4 hours for a 8 Cell battery; Up to 8 hours for a 16 Cell battery
Battery Duration
Setting8 Cell16 Cell
Pulse 1
Pulse 2
Pulse 3
Pulse 4
Pulse 5
4.5 hr
4.0 hr
3.0 hr
2.0 hr
1.7 hr
9.5 hr
8.5 hr
6.0 hr
4.0 hr
3.3 hr
FAA ApprovedYes. Always contact your airline prior to your flight to confirm any requirements they may have to be sure that they will allow your oxygen concentrator on board
Flow Settings1-5 settings
Noise Level39 dBA on setting 2
Operating Temperature Range41°F to 104°F (5°C to 40°C)
AltitudeUp to 10,000 feet (Up to 3,048 meters)
Oxygen Concentration90% -3% / +6% at all settings
Storage temperature-13°F to 158°F (-25°C to 70°C)
Maximum Oxygen Output1050 ml/min
Oxygen ConcentrationAround 90% on all settings
PowerAC Power Supply 100-240V, 50-60Hz
DC Power: Intended for car/boat/airplane usage



User manual



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