AirSep FreeStyle 5 Portable Oxygen Concentrator — Full Review
Published 2026-07-21
The AirSep FreeStyle 5 is a pulse-dose-only portable oxygen concentrator, meaning it delivers oxygen in short bursts timed to your inhalation rather than a continuous flow. That design is what keeps its weight down — it's one of the lightest 5-setting POCs on the market — making it a strong option for patients who are mobile and want a concentrator they can carry over the shoulder for a full day out.
Who it suits
Because it's pulse-dose only, the FreeStyle 5 is best for patients whose prescription doesn't require continuous flow overnight. It's popular for travel, errands, physiotherapy sessions and anyone who wants to stay active without hauling a heavier concentrator or cylinders.
Battery and settings
It offers 5 pulse settings and runs on a rechargeable battery pack, with additional battery options extending time away from a wall outlet — useful for flights (it's commonly accepted by airlines, though you should always confirm with your carrier in advance) and day trips.
What to check before buying
- Confirm with your physician whether pulse-dose delivery matches your current prescription.
- Ask about extra battery packs if you're planning to be away from power for more than a few hours.
- Get the unit serviced and the sieve/filters checked on the schedule in the manual — this is what keeps concentration levels consistent over the years.
We stock the FreeStyle 5 with full manufacturer warranty and can walk you through battery and accessory options based on your daily routine.