The Inogen One G2 HF, a single solution portable oxygen concentrator, is small, lightweight, quiet, energy efficient, and very easy to use at home or traveling. This next-generation device has changed oxygen therapy greatly.

The Inogen Portable Oxygen Concentrators

A portable oxygen concentrator is a device that utilises ambient air to concentrate it and remove the nitrogen content to deliver the purified oxygen to you directly. Inogen is one of the world’s best brands of oxygen solutions manufacturers. The Inogen portable oxygen concentrators have offered freedom and peace of mind to many patients who are receiving oxygen therapy and due to its easy to carry and compact nature that does not come with the cumbersome refills or oxygen tanks, you are able to use it just about anywhere, whether you are at home or on-the-go.

The Inogen Portable Oxygen Concentrators are ideal as they pose as a single oxygen solution device that can be used in any location, even on an airline when you travel (45 major airlines allow this reputable brand’s portable oxygen concentrators onboard) making airline travel easier for COPD patients and those who require a little assistance with breathing.

The Inogen G2 and G3 Portable Oxygen Concentrator systems are great choices for oxygen therapy. However, if you were wondering what the differences between the two POC systems were, we are here to help. The following table offers you insight into the features and specifications of the Inogen G2 and Inogen G3 Portable Oxygen Concentrator Systems.


Inogen G2 HF Inogen G3
Weight 7.25lbs / 3.2kg

(includes single battery)

8.25 lbs / 3.7kg

(includes double battery)

4.7lbs / 2.2kg

(includes single battery)

5.7 lbs / 2.6kg

(includes double battery)

Size Length: 10.7in / 27.3cm

Width: 3.9in / 10.0cm

Height: 9.5in /  24.3cm

Length: 8.75in / 22.2cm

Width: 3.0in / 7.62cm

Height: 7.25in / 18.42cm

Flow Setting Pulse Dose Technology. Suitable for people with a prescription of up to 5LPM

Delivers equivalent of 1 to 6 litres of oxygen per minute via pulse dose

Intelligent Delivery Technology

Four flow setting from 1-4Delivers equivalent of 1 to 4 litres of oxygen per minute via pulse dose

Noise Level Less than 38 Decibels on setting 2 42 Decibels on setting 2
Battery Duration (single 12 Cell battery): up to 4 hours

Duration (double 24 Cell battery): up to 8 hours

Recharge approx. 2-4 hours (single battery) with AC or DC power

Recharge approx. 4-8 hours (double battery) with AC or DC power


Duration (single 8 Cell battery): up to 4.5 hours

Duration (double 16 Cell battery): up to 9 hours

Recharge approx. 2-4 hours (single battery) with AC or DC power

Recharge approx. 4-8 hours (double battery) with AC or DC power


Compressor 25,000 hour compressor life 20,000 hour compressor life
Operation Simple control functions and easy-to-read LCD display
Power Sensing AC power supply 100-240V, 50-60Hz (auto sensing allows worldwide use)
Warranty 3 year limited warranty

Intelligent Delivery technology, a moniker for Pulse Dose oxygen delivery essentially means that the oxygen is delivered in a pulse dose also known as a bolus each time you breathe in. What the Inogen Portable Concentrators does is that when your respiratory rate or your breathing pattern changes, the machine will actively align itself to accommodate it so that you make the best and the most of your oxygen therapy. When your breathing rate increases, the bolus sizes are reduced to avoid oxygen wastage (on expiration) whereas when your breathing rate decreases such as when you are sleeping, the machine will react accordingly to increase the bolus size for the longer intake of breath (inspiration).

If you are in need of a compact and easy to use portable oxygen concentrator, speak to our friendly Oxygen Specialists by calling Oxygen Solutions on 1300 558 947.