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Portable Oxygen Concentrators- InogenOne G4 Ultra Portable Oxygen Concentrator
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InogenOne G4 Ultra Portable Oxygen Concentrator

AirSep Focus Portable Oxygen Concentrator
Ultra Portable Oxygen Concentrator
The smallest and lightest multi-setting pulse flow oxygen concentrator providing up to an equivalent of 3 litres per minute.
1 - 3 Litres
per minute equivalency
Up to
5 Hours
Pulse flow oxygen
With 4 cell battery inserted
with 8 cell battery inserted
2 packages available from
£2,628.00 (Inc. VAT)
£2,190.00 (ex. VAT)


If you suffer with a chronic illness or registered disabled you can purchase this item VAT free
Get a better price in our Secret Sale. Enquire now.


INOGENONE® G4 breaks the barrier for greater independence and is the perfect solution for those seeking to maintain an active lifestyle whilst on oxygen.

Weighing from as little as 2.8lbs (1.27kg)1, the INOGENONE® G4 really does “punch above its weight” with an incredibly compact, sleek, and stylish design. It is the smallest and lightest portable oxygen concentrator in our range with selectable pulse flow settings producing up to an equivalent of 3 litres per minute.

The G4 is very quiet and unobtrusive producing noise that is less than a normal indoor conversation. It is simple to operate. The user interface features a white back-lit LCD display that clearly shows the current pulse flow setting as well as the remaining battery life. The pulse flow setting can easily be adjusted using the plus and minus buttons on the control panel.

When using the G4, its intelligent oxygen delivery system works in accordance to the user’s respiration rate by automatically adjusting how short or long each burst of oxygen is delivered. During the periods of high exertion, the oxygen is delivered in shorter bursts. Whilst sleeping or during periods when respiration is at a lower rate, the G4 will give longer bursts. This clever system always ensures the user maintains the correct dosage of oxygen as prescribed.

It comes complete with both mains and car power supply units. Also included is a protective carry bag together with a carry strap that can also fix directly onto the machine itself.

The INOGENONE® G4 is available with either a 4 cell battery (up to 2 hours 40 minutes1 operation time) or an 8 cell battery (up to 5 hours2 operation time) and slots into the bottom of the machine. A desktop charger is also available to charge batteries independently from the machine.

1 Based on 4 cell battery installed      2 based on lowest setting



 Watch demonstration video




 What comes in the package?
4 Cell Battery Package
INOGENONE® G4 main unit
4 cell rechargeable battery
Carry bag with shoulder straps
AC mains power supply unit
DC power supply unit
User manual & Quick start guide
Nasal cannula
8 Cell Battery Package
As above but including:
8 cell rechargeable battery in replace of the 4 cell battery
 Technical Specifications


1 - 3 Settings

Pulse flow oxygen


5 Hours Battery Life

With 8 cell battery inserted.

Up to 2:40hrs with 4 cell battery inserted


2.8lbs (1.27kg)

With 4 cell battery inserted

3.3lbs (1.49kg) with 8 cell battery inserted


Airline Approved

Approved for use on an aircraft subject to airlines conditions



100 - 240V AC Mains

50/60Hz. Works around the world on any power rating and on cruise ships.

12v DC Car

Plugs into any 12v socket like a car.

Battery Recharge time approx. 3:30 to 6 hours

On any power source depending on battery size and usage conditions

Low Noise Output 40db(A)

Based on setting 2

Not suitable for use with ventilator device

As this device doesn't have a continuous flow option, it is not suitable for use with a CPAP or BiPAP ventilators.

3-year Warranty

1 year on batteries, accessories and sieve beds. Limited manufacturer's warranty covering parts and labour. See manual for full warranty info.








Why choose Intermedical Homecare?
Founded in 1997, We have over 20 years experience
We are the only POC supplier in the UK accredited to ISO13485 quality standard
We provide dedicated support and advice, even out of hours
We are also there if something goes wrong with next-day loan unit support



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