Understanding NHS Home Oxygen Provision
The NHS contracts home oxygen services out to four commercial suppliers, each covering a distinct geographical patch of England. Air Liquide handles London and the South West, Baywater Healthcare covers the North West, Yorkshire and the Humber, the West Midlands, and Wales, BOC looks after the East of England, the East Midlands, and Northern Ireland, while Vivisol manages the North East. If you are in Scotland, arrangements differ slightly and are managed through local health boards.
Most people associate NHS oxygen therapy with the familiar setup: a large concentrator machine about the size of a bedside table, plugged into a wall socket, humming away while delivering oxygen through nasal cannula tubing. For getting out and about, the NHS typically offers small portable cylinders that weigh roughly two to three kilograms and hold up to three hours of oxygen. These work well enough for popping to the shops, but they are not without their drawbacks. Cylinders run out, they need replacing, they cannot be taken on aeroplanes, and for someone who wants genuine mobility, they can feel like a short leash.
What many patients and even some GPs do not realise is that portable oxygen concentrators—often referred to as POCs or mini concentrators—can be prescribed through the NHS. The reason this option is not widely advertised may have something to do with the unit cost, which sits around £2,500 to £3,000 per device. However, when you consider that a patient on long-term oxygen therapy no longer needs regular cylinder deliveries, the arithmetic starts to look more favourable for the health service.
Who Qualifies and How the Assessment Works
Not everyone with a lung condition automatically qualifies for home oxygen, and there are strict criteria. The most fundamental requirement is that blood oxygen levels must fall below a certain threshold. If you are a current smoker, you will not be eligible—this is a firm rule across all NHS home oxygen services due to the serious fire risk.
The journey typically starts with your GP or respiratory consultant. They will refer you to a home oxygen assessment service, where specialists measure your oxygen saturation at rest and during exertion. A common test involves a six-minute walk where your oxygen levels are monitored while you walk on a flat surface. If your saturation drops significantly during activity, you may be classed as needing ambulatory oxygen—oxygen you use when moving around rather than all day.
It is during this ambulatory oxygen assessment that the question of a portable concentrator can arise. The assessment team works for the NHS-contracted supplier in your region, which means they have a commercial interest in the equipment they provide. Historically, they have tended to offer cylinders first, partly because the upfront cost is lower and the logistics are simpler. But patients can and do ask about POCs. Being informed and prepared to discuss your lifestyle needs—whether that is walking the dog, attending a weekly bridge club, or visiting grandchildren—can make a difference.
Margaret, a retired teacher from Bristol with pulmonary fibrosis, went through the standard assessment and was initially offered portable cylinders. She explained that she wanted to travel to see her daughter in Scotland and that cylinders were impractical for a long train journey. After a further discussion with her respiratory nurse, she was reassessed and eventually received a portable concentrator through the NHS. Her story is not unique, but it highlights that persistence and clarity about your mobility needs can shift the outcome.
Buying Privately: What You Need to Know
Some people choose to purchase a mini oxygen concentrator outright rather than navigate the NHS route. The private market in the UK has expanded considerably, and devices have become lighter and more capable. The Inogen Rove 6, for example, retails for approximately £2,050 to £2,200 through UK medical suppliers. The CAIRE FreeStyle Comfort and the Respironics SimplyGo Mini are other popular options, with prices generally falling in a similar range.
A word of caution: buying oxygen equipment online without a prescription is risky. The NHS explicitly warns against using oxygen without medical supervision, as it can damage the brain, heart, and lungs if used incorrectly. Any reputable UK supplier will require a prescription before selling you a device, and you should be wary of any seller that does not.
Here is a comparison of the main routes available to UK residents:
| Route | Example Device | Cost to Patient | Wait Time | Portability | Key Consideration |
|---|
| NHS Prescribed POC | Varies by supplier | No direct cost | Weeks to months | Good | Requires meeting clinical criteria |
| NHS Portable Cylinders | Standard aluminium cylinder | No direct cost | Days | Moderate (3hr oxygen) | Cannot fly; limited duration |
| Private Purchase | Inogen Rove 6 | £2,050–£2,200 | Immediate | Very good | Prescription still required |
| Private Purchase | CAIRE FreeStyle Comfort | £1,900–£2,500 | Immediate | Very good | Lighter than some alternatives |
| Rental (Short-term) | Various models | Varies by provider | Days | Good | Useful for travel or trial |
Navigating the System: Practical Steps
If you are considering pursuing a portable oxygen concentrator through the NHS, start by speaking with your respiratory consultant or GP. Be specific about your daily activities and why a cylinder does not meet your needs. The key phrase to use is "ambulatory oxygen assessment," and you may want to mention that you are interested in discussing all available options, including portable concentrators.
Contact your regional supplier directly if you are already on home oxygen. The numbers are: Air Liquide on 0808 143 9991 for London or 0808 143 9999 for the South West, Baywater Healthcare on 0800 373 580, BOC for the East of England, East Midlands and Northern Ireland, and Vivisol for the North East. Ask them about your current entitlement and whether a POC review is possible.
For those who decide to buy privately, several UK-based medical equipment suppliers offer competitive pricing and aftercare. Look for companies that are authorised dealers for manufacturers like Inogen, CAIRE, and Respironics. Check that the device you are considering is approved for air travel if that matters to you—most major airlines accept FAA-approved portable oxygen concentrators, but you will need to notify the airline in advance.
If you are travelling abroad with a portable concentrator, the NHS device will not leave the country. You will need to make private arrangements, which is another reason some patients opt to purchase their own unit even if they have an NHS one at home. Travel insurance that covers your respiratory condition is essential, and the Asthma and Lung UK website offers guidance on planning trips with oxygen needs.
The NHS does not charge patients for prescribed oxygen equipment. Private purchase, while a significant outlay, gives you ownership and the freedom to travel internationally without the administrative hurdles of NHS equipment. Some patients find that a combination works best: an NHS concentrator for home use and a privately purchased mini unit for holidays and longer outings.
If you are at the start of this journey, the single most useful thing you can do is to have a candid conversation with your respiratory team. Ask about the ambulatory oxygen pathway, be clear about what mobility means to you, and do not be shy about inquiring whether a portable concentrator is an option. The NHS can provide them, and while the process may require some patience, the difference a mini concentrator can make to daily life is considerable.
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