Inogen One G3 Portable Oxygen Concentrator Review By Expert

The Inogen One G3 Portable Oxygen Concentrator is a lighter, portable oxygen concentrator with longer lasting battery options that is ideal for anyone who requires oxygen and still wants to stay on the go. Notable improvements include extended battery life and refinements to overall design.

Inogen One G3 Portable Oxygen Concentrator

Inogen One G3 Design

The smaller, lighter design is a vast improvement over past Inogen One portable machines. Weighing only 5 pounds, the Inogen One G3 is lightweight and easy to carry while running errands or simply staying active.

Benefits of using Inogen One G3 Portable Oxygen Concentrator

Performance matches portability. The Inogen One G3 effectively purifies surrounding air while ensuring no oxygen is wasted. As your breathing patterns change, the G3 concentrator modifies the pulse of the oxygen delivery to the best possible setting to match your rate of breathing. No adjustments are necessary.

How Does Inogen One G3 Portable Oxygen Concentrator Compare to the Competition?

The Inogen One G3 does more than hold its own among popular portable oxygen concentrators on the market.

Feature Inogen One G3 Philips Respironics SimplyGo Mini Philips Respironics Simply Go DeVilbiss iGo
Battery Life 9.5 hrs with 16 cell battery Up to 12 hrs with extended battery Up to 2.9 hours continuous flow Up to 4 hrs continuous flow
Capacity 1-5 lpm Pulse Dose Only 1-5 Pulse Dose Only 1-6 Pulse Dose / 0.5-2 lpm Continuous 1-6 Pulse Dose / 1-3 lpm Continuous
Weight 4.8 lbs-5.8 lbs 5-6 lbs 10 lbs with battery 19 lbs with battery

Weight & Size

The Inogen One G3 weighs 4.8 lbs with an 8-cell battery and 5.8 lbs with a 16-cell battery. It is a compact device, measuring at 8” x 3” x 8”.

Oxygen Purity

Oxygen concentration is 90% -3% / +6% at all settings.

Power Consumption

Battery duration depends on the battery type and pulse setting.

Setting 8 Cell 16 Cell
Pulse 1 4.5 hr 9.5 hr
Pulse 2 4.0 hr 8.5 hr
Pulse 3 3.0 hr 6.0 hr
Pulse 4 2.0 hr 4.0 hr
Pulse 5 1.7 hr 3.3 hr

Inogen One G3 Filters

The output filter is intended to protect you from inhalation of small particles in the product gas flow. The Inogen One® G3 includes an output filter conveniently located behind the removable cannula nozzle fitting.

Operating Altitude Range

The Inogen One G3 operates at altitudes up to 10,000 feet or up to 3,048 meters.

Inogen One G3 Sound Level

Inogen One G3 is also quiet with a noise level of 39 dBA on setting 2.

Inogen One G3 Maintenance

Your nasal cannula should be replaced on a regular basis. You may clean the outside case using a cloth dampened with mild liquid detergent and water. Particle filters must be cleaned weekly to ensure the ease of air flow.

Is a Warranty Included?

The Inogen One G3 includes a 5 year warranty.

How Much Does the Inogen One G3 Cost?

The Inogen One G3 is currently available for $2,295.00.

Are there any discounts on Inogen One G3?

Check back to see discounts on the Inogen One G3 at The Oxygen Concentrator Supplies Shop. We also recommend that you can sign up for email notifications to learn about the latest sales.

Have questions about the Inogen One G3 portable oxygen concentrator? Call us at 888-941-1688 or email us at