Choosing the right oxygen concentrator for you can be stressful, especially if you aren’t sure where to start. There are many oxygen machines out there today, so it can be exhausting researching each machine.
Oxygen Concentrator Store has a variety of oxygen concentrators and portable oxygen machines. One brand that we offer a few different models from is Inogen. This oxygen company was launched in 2001, and it offers three main oxygen concentrators: Inogen One G3, Inogen One G4, and the Inogen at Home. All three products have benefits, although they are specific — depending on your oxygen needs.
To help you choose the right oxygen concentrator, we’re highlighting the two portable Inogen oxygen concentrators. We’ll give you a side-by-side comparison of both the Inogen One G3 and the Inogen One G4. Once you asses your individual needs, you can decide which machine is best for you.
Inogen G3 and Inogen G4 Oxygen Flow Settings
Although the G3 and G4 Inogen models have similarities, there are a few significant differences. Both of these portable oxygen machines offer a pulse dose method of delivering air. This mode conserves oxygen, and it has a number of settings depending on your needs.
The Inogen One G3 offers settings from 1-5; the Inogen One G4 only has settings 1-3. Having multiple settings is helpful for those who have a variety of activities they need oxygen for, as the settings "can deliver the proper amount of oxygen during all phases of daily activity and rest".
Weight and Size
Both portable oxygen concentrators are under five pounds, although the G4 model weighs less than the G3. With a single (small), battery the G4 model weighs only 2.8 pounds; it weighs just 3.3 pounds with the 8-cell (large) battery. The G3 model weighs just under five pounds with the standard 8-cell (small) battery.
The two concentrators are relatively easy to carry while on the go, as they aren’t very big. The G4 model is about seven inches tall, six inches wide, and about three inches deep. The G3 model is a little more than eight inches tall, almost nine inches wide, and three inches deep.
The life of your machine during each use will depend on the battery it houses and the setting you use it on. The Inogen One G3 concentrator has two options: 8-cell (small) battery or 16-cell (large) battery. Although this machine is under five pounds with the 8-cell, it will weigh more with the 16-cell. However, with the 8-cell battery, you get an average of 1.7 hours on setting five and an average of 4.5 hours on setting one. The length of battery life depends on which setting your machine is on, along with the size of the battery.
The Inogen One G4 also has two battery options the 4-cell (small) battery or the 8-cell (large) battery. With the 4-cell battery, the machine can last on average 1.2 hours on setting three and an average of 2.4 hours on setting one. Once again the length of battery life depends on which setting your machine is on, along with the size of the battery.
Side-by-Side Unit Comparison
*includes single battery
Depth: 3 inches
Height: 8.25 inches
Depth: 2.68 inches
Height: 7.2 inches
Pulse Dose: 1 to 5 settings
Pulse Dose: 1 to 3 settings
Setting of 2: 2 hours 15 minutes
Setting of 3: 1 hours 20 minutes
Both the G3 and G4 models are fairly quiet machines, with 39 decibels for the G3 and 40 for the G4. The noise level is comparable to the sound of a "quiet conversation." The G3 model comes with a carry bag that has a strap on it. The G4 model has a strap on the machine, along with a separate carry bag.
The Final Choice: Inogen One G3 vs. Inogen One G4
Specifications of the Inogen One G3 and the Inogen One G4 are relatively similar to one another. The G3 model is a little larger and heavier in size, although it offers more settings than the G4 model. Both models are intended to help those with COPD while they’re on the go, or while they are at home.