AirSep FreeStyle 5 Portable Concentrator

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Airsep Freestyle 5

Airsep Freestyle 5 is a 2.80 kg pulse flow portable oxygen concentrator for home use that provides oxygen flow up to 5 pulse settings which is approximately equivalent to 4.5 liters per Minute of continuous oxygen flow. AirSep FreeStyle 5 provides oxygen settings from 1 to 5 and adds new important features that include a simple, one-touch operation, longer battery life, and a new color scheme.

Manufacturer Airsep
Dimensions 6.6 inches Wide x 4.4 inches Deep x 10.7 inches High
Product Weight 6.7 pounds (with battery)
FAA Approved yes
Warranty Three-year Warranty on the unit and One-year Warranty on battery and accessories
Alarms / Alerts Start-up, low battery, pulse flow, breath rate, battery charge status, temperature alarms, general malfunction, cannula disconnect, high or low pressure.
Battery Charging Time 4 to 5 Hours (depending on remaining battery life)
Battery Duration 1.25 Hours – 5 Setting
1.75 Hours – 4 Setting
2 Hours – 3 Setting
2.5 Hours – 2 Setting
4.25 Hours – 1 Setting
Maximum Oxygen Output 1000 ml/min
Noise Level 38 – 52 decibals depending on setting (48 dBA @ setting of 3)
Oxygen Concentration 90% oxygen +5.5% -3%
Power Universal Power Supply
AC Power: 100-240 VAC, 50/60 Hz; 11-16 VDC
DC Power: 11 – 16 VDC, 6.0 amps at 12 VCD
Rechargeable, lithium battery
Operating Ranges, Intended for Use 41 – 104 Fahrenheit (5 – 40 Celsius)
Up – 12,000 feet (3048 m)
Storage Ranges, Intended for Storage -4 – 140 Fahrenheit (-20 – 60 Celsius)
Flow settings Pulse: Settings from 1 to 5

Additional information

Product Type




Model Name

Freestyle 5


1-5 settings (Pulse)


2.8 kg

Battery backup (at 2 pulse setting)

2 hours

Recharge time

3 hours


1. How do I maintain my oxygen concentrator?

No routine maintenance is necessary. The surface of an oxygen concentrator can be cleaned according to the cleaning instructions in the user’s manual.

Yes. With freestyle 5, travelling with your oxygen is easy. It is approved by the FAA for use aboard all commercial domestic aircraft.

Battery Cycle Life: Around 300 charges, then only 80% capacity or less

Yes, AirSep Freestyle 5 is FAA approved.

Include the FreeStyle 5 unit, internal battery, universal power supply, AC power adapter, DC power adapter, shoulder strap, cannula and manual.

9 reviews for AirSep FreeStyle 5 Portable Concentrator

  1. 4 out of 5

    Aman Verma

    The Airsep Freestyle 5 provides good functionality. A bit high on the price, but overall a satisfactory purchase.

  2. 5 out of 5

    Anushka Shetty

    Amazing product! Battery life is impressive and the portability aspect is a boon. Highly recommended!

  3. 4 out of 5

    Ramesh Chandra

    Good product overall, but the customer service could be improved. It took multiple calls to get my queries addressed.

  4. 5 out of 5

    Priyanka Singh

    Excellent concentrator! It’s lightweight and compact. The battery life is also good, making it easy to carry around.

  5. 4 out of 5

    Karan Oberoi

    The device is efficient and does the job well. A little noise is there, but it’s manageable.

  6. 5 out of 5

    Radhika Menon

    Fantastic product! User-friendly and easy to carry. Has made a significant difference in my mother’s life.

  7. 3 out of 5

    Dinesh Gupta

    The product is decent, but the delivery was delayed. Medikart needs to work on its delivery timelines.

  8. 4 out of 5

    Shefali Bhardwaj

    The Airsep Freestyle 5 is efficient and easy to operate. A bit heavy, but the portability makes up for it.

  9. 5 out of 5

    Rajan Malhotra

    Extremely satisfied with the product. It’s dependable and compact. Would recommend to anyone in need of portable oxygen concentrators.

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