AirSep FreeStyle 5 Portable Concentrator Review

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Product is rated as #28 in category Portable Oxygen Concentrators
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AirSep Freestyle 5 Portable Oxygen Concentrator Review

Why stay indoors and watch the world pass you by because you are undergoing oxygen therapy? The world is filled with ‘magic’ and you should be a part of it. The doctor says you have a chronic lung condition called chronic obstructive pulmonary disease (COPD). So what? It could be scary, but there are tons of options to help you live an active life. You might already be on an oxygen tank or a stationary oxygen concentrator at home. All of that can change.

CAIRE Inc. has given you a way out with the AirSep Freestyle 5 portable oxygen concentrator, endowed with features to improve your overall quality of life. These include but are not limited to its compact design, lightweight, rechargeable battery and ultra-sense technology. To some, it has been dubbed the lightest portable oxygen concentrator on the market.

This AirSep Freestyle 5 portable concentrator review is going to explore these features in more detail and maybe give you that extra push you need to choose an oxygen concentrator for yourself. Let’s do this then.


What Features do we get with the AirSep Freestyle 5?

Don’t worry, it’s not a long list.


Special features:

Ultra-sense technology: This unit has been referred to as one with the highest pulse output because of this technology. The competitors of the AirSep freestyle 5 are undeniably no match. It has a more sensitive pulse dose delivery than other portable oxygen concentrators. This tech ensures immediate and dependable pulse dose delivery at the start of inhalation.


Other Features:


Size, Weight, and Design

The Freestyle 5 portable oxygen concentration is said to be an improvement of the AirSep Freestyle, its predecessor. This device is a reliable pulse dose oxygen concentrator with a lightweight of 6.7 pounds. This makes it easy to take wherever you want to go without any hassle. Even on your road trips and flights across the country.

It measures 10.7 inches in height, 6.6 inches in width and 4.4 inches in depth. This is so compact and could go unnoticed if stowed away in a backpack or car seat pocket.


Flow Settings

The AirSep Freestyle 5 has a wide range of pulse flow settings – from 1 to 5.

Breathing rates vary widely depending on the amount of energy expended while walking, resting, reading, and exercising. Therefore, you need an oxygen machine that will let you go about doing those things without having to worry about low oxygen concentration levels. This is the reason why the Freestyle 5 has pulse flow settings that range from 1 to 5, allowing you to concentrate on the current activity while yet being adequately saturated.


Battery Life and Power supply

The AirSep Freestyle 5 can run on four different power sources (including a universal power supply). These include the following:

  1. An internal battery: This has a battery life of up 5 hours when used at the lowest pulse setting of one and two hours when used at two.
  2. AC power supply: With an AC power adapter, this device can recharge and be used at the same time.
  3. DC power supply: You don’t need to worry about battery power when you are on a trip from home. An AC power adapter can be converted to a DC power adapter and used to recharge your device in the car.
  4. Airbelt supplemental battery pack: This increases the user’s time away from a power source by providing 7.5 extra hours.


Oxygen Output

With its five pulse dose settings, this unit delivers up to 750mls per minute of oxygen (equivalent to 5 liters per minute) on setting 5. It also delivers an output of 87% to 95.5%.


Control panel

When reading novels or watching TV, you can find it challenging to read the fine print, but reading the AirSep Freestyle 5 control panel won’t require you to strain your eyes at all. Changing your flow settings only takes a few seconds thanks to the big buttons that stand out from the panel.

The control panel also has a battery gauge that lights up next to the remaining battery life section, in addition to the huge buttons. You won’t have to worry about trying to recall how long it has been since you unplugged from the charger thanks to this.


Noise level

The AirSep Freestyle 5 has a sound level of 48 decibels at a setting of 3.


Accessories available for the AirSep Freestyle 5 Portable Oxygen Concentrator

  1. AirSep Freestyle 5
  2. Carrying case
  3. AC power adapter
  4. DC power adapter
  5. Backpack harness
  6. Shoulder strap
  7. External battery
  8. Nasal cannula
  9. External battery charger

This AirSep unit pairs well with the newly redesigned carrying case providing excellent protection with indisputable comfort. The carrying case provides the simplest and safest way to transport the Freestyle 5. It has an integrated carrying handle, a shoulder strap, and the capacity to transform into a wearable backpack with the harness system. Additionally, the carrying case has a compartment for the optional external battery and an additional back pocket that is ideal for a few small personal documents.


FAA Approval

Traveling on a US aircraft would no longer be a concern because the Freestyle 5 has FAA approval. Even long travel days are feasible thanks to the exceptional battery life of this oxygen concentrator. Just the internal battery and the DC power charger are mostly needed for long flights. To extend your travel time between charges with the Freestyle 5, you could use the optional AirBelt battery. You’re not just limited to flying; the supplied AC/DC power adapter also enables you to take that road trip you’ve always wanted to take without having to worry about running out of gas or batteries. With the Freestyle 5, you can fly, drive, or even cruise. No limits!



The AirSep Freestyle 5 portable oxygen concentrator is a reliable operating unit that can provide you with supplemental oxygen with no challenges moving from one place to the other, and it would also give you excellent oxygen output. This unit comes highly recommended to suit all your needs. Give it a try.

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1 review for AirSep FreeStyle 5 Portable Concentrator Review

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  1. Ann

    This unit lasts me exactly 2 hours and then begins emitting a loud alarm. Definitely not getting 2.5 .

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