Inogen One G3 Compared to the AirSep Freestyle 3

Oxygen concentrators offer a light-weight portable alternative to traditional, bulky, oxygen tanks. Because they pull oxygen from the surrounding air, you don’t have to worry about tanks being delivered or being refilled. Instead, room air passes into the unit, which separates oxygen from the nitrogen in the air, and delivers a high flow of oxygen right to the patient. This type of oxygen unit allows the user freedom of movement and a much more active lifestyle than a traditional tank. Today, let’s take a look at and compare two portable oxygen concentrators: the AirSep Freestyle 3 and the Inogen One G3. Both allow for maximum freedom with slight variations in specifications.

The AirSep Freestyle 3 is an all-in-one oxygen concentrator. It’s completely portable, weighing just 4.4 pounds, making it the lightest machine offering a setting up to three. It comes with a built-in battery that is rechargeable. You can carry it by the attached handle or using the carrying case with shoulder strap.

The AirSep has three pulse oxygen settings and an oxygen unit of over 90 percent. It can be powered by battery, with three settings of two, two and a half, or three and half hours . The AirSep Freestyle 3 can also be plugged into a universal AC or DC power supply. It takes about three hours and thirty minutes to recharge . You can also add an optional external power cartridge to extend the life of the AirSep Freestyle 3 while you’re on the go. The external power cartridge has three settings which add up to ten additional hours of use.

The AirSep Freestyle 3 comes with optional accessories, such as the AirBelt, which adds an additional ten hours of power. The AirBelt also allows the unit to be worn on the waist when the belt is fed through the loops of the carrying case. The AirSep Freestyle 3 can be converted to a backpack with an optional harness accessory.

The control panel, located at the top of the AirSep Freestyle 3, has an easy flip-up dust cover that allows you to choose a flow setting between one and three. There is also a battery test button, and battery life is shown in 25 percent increments .

The AirSep FreeStyle 3 comes with a three-year warranty, and a one-year warranty on accessories.

Like the AirSep Freestyle 3, the Inogen One G3 is very lightweight. At 4.8 pounds, it weighs just slightly more than the AirSep. The Inogen’s dimensions are smaller than the AirSep’s (6.1 x 3.6 x 8.6 inches); the Inogen One G3 is one of the smallest sized portable oxygen concentrators, measuring in at 7.25 x 3 x 8.75 inches.

Instead of three settings, the Inogen One G3 delivers five pulse flow options, with setting from one to five. It allows the user to control the level of oxygen delivery through push-button up and down arrows. The battery life is shown on an LED display, which can be backlit. The Inogen One G3 also has an optional alarm button that will offer an audio and visual alert when no breath is detected for 60 seconds. Like the AirSep Freestyle 3, the Inogen One G3 also delivers about 90 percent oxygen machine.

The Inogen One G3 comes with a single battery that lasts four and a half hours or a double battery that lasts up to nine hours. Like the AirSep Freestyle 3, it can be plugged into an AC or DC power supply. It is also relatively quiet; where the AirSep Freestyle 3 has a noise level between 38-44 decibels, the Inogen One G3 produces less than 39 decibels.

As with the AirSep Freestyle 3, the Inogen One G3 comes with a carrying bag with a shoulder strap. An optional backpack is available for the Inogen One G3 unit. The Inogen offers the same three-year warranty as the AirSep, with a three-month warranty on accessories.

Both the AirSep Freestyle 3 and the Inogen One G3 are FAA approved for air travel.

About Scott Ridl: Scott joined American Medical Sales and Rentals in 2008 as a Web Manager and Content Writer. He is a writer and designer. He is extensively trained on oxygen therapy products from leading manufacturers such as Inogen, Respironics, Chart, Invacare, ResMed and more. Scott works closely with respiratory therapists and oxygen specialists to educate the community about oxygen therapy products, COPD, asthma and lung diseases. He writes weekly columns and is passionate about educating the community on oxygen therapy and respiratory issues.

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