Refurbished Inogen One G4 4-cell Portable Oxygen Concentrator
Introducing the next innovation to portable oxygen delivery: the Inogen One G4, capable of full 24/7 oxygen delivery in an unbelievably small package! Offering 1-3 flow settings, the Inogen One G4 is one of the smallest, lightest and quietest units available to the oxygen user today.
Both the G3 and G4 incorporate Inogen’s Intelligent Delivery Technology. This breath detection technology is fast and sensitive to ensure that the oxygen is delivered at the beginning of the breath cycle which is the most critical time. It also compensates for decreased breath rates by triggering a larger bolus size based on a fixed minute volume. Conversely, a faster breath rate will result in smaller bolus size which may lead to out-breathing the capacity of the machine. If you are consistently short of breath while using an Inogen, it may be due to a fast breath rate and you may require a different model to meet your oxygen needs.
Another feature of Inogen units is the auto pulse mode. Many oxygen therapy patients will tend to breath out of their mouth. When this happens breath is not detected and oxygen is not delivered. If breath is not detected an audible alert will sound. If it is still not detected the concentrator will go into auto pulse mode which will dispense intermittent boluses of oxygen until breath is detected.
Size & Weight
Weighing only 2.8 lbs. (3.5 lbs. with a large battery), the Inogen One G4 is the lightest concentrator on the market which provides 1 – 3 pulse flow settings. The Inogen One G3 weighs 4.8 lbs. (5.8 lbs. with a large battery), which is the lightest concentrator that provides 1-5 pulse flow settings.
Both concentrators come with two battery options–a small (single) battery which keeps the unit lighter and a large (double) battery which doubles the battery time on most settings. The Inogen One G4’s single battery has 4 cells and the double battery has 8 cells, while the Inogen One G3’s single battery has 8 cells and the double battery has 16 cells. Because of the Inogen One G3’s larger batteries, it does provide about twice the battery time.
In addition to batteries, both concentrators come with an AC power adapter so that is can run continuously while plugged into a wall outlet. They also come with a DC power adapter which can be plugged into an auxiliary power outlet in a car. This is beneficial as it can run from the car battery, enabling you to have a full battery charge when you reach your destination.
Setting 1: 3 hr
Setting 2: 2 hr
Setting 3: 1.25 hr
Setting 1: 6 hr
Setting 2: 4.5 hr
Setting 3: 2.5 hr
Upgraded Control Panel
The Inogen One G4 has an upgraded LCD screen and large push buttons to make operating the machine as easy as possible. The upgraded LCD screen illuminates when you are using the machine or push a button and it has larger text making it easier to read. You will see vital information like the flow setting you are using and your remaining battery life on the screen. The 4 push buttons are all labeled with their function to eliminate any confusion.
Just like the Inogen One G3, the G4 requires virtually zero maintenance from you. That’s one of the features that makes the Inogen units so appealing. The only maintenance required from you is regular washing/replacing of your intake filters.
The Inogen One G4 is a compact FAA approved portable oxygen concentrator. This unit offers freedom to travel with a lightweight oxygen source. It is designed to be as light as possible while offering flow rates in a pulse delivery mode of settings 1, 2, or 3. Portable oxygen concentrators keep getting smaller and smaller with more models coming to every year. There are currently 30 different units that are FAA approved and the Inogen G4 is among the smallest out there. It does not offer a continuous flow for sleeping at night time and it is not designed for users that can not use a pulse delivery. Most people, however use the pulse delivery and this unit provides lightweight portability for daily activities as well as airline travel.
Includes one year warranty direct from Inogen