Hyperbaric chamber cost in the UK: what you are paying for

A hyperbaric chamber session in the UK can cost very different amounts depending on where you go, because providers are not selling the same thing. Pressure, chamber type, how oxygen is delivered, who screens and supervises you, the time you spend at pressure and the size of the course all change the price. The fairest way to compare is price per session at a stated pressure, with the inclusions listed.

The NHS funds hyperbaric oxygen therapy (HBOT) for a small number of emergency indications. For almost everything else people look into HBOT for, private treatment is the only route, so it is worth knowing what drives the cost before you pay.

What drives the cost of hyperbaric oxygen therapy in the UK?

Pressure. Pressure is measured in atmospheres absolute (ATA); sea level is about 1 ATA. The Undersea and Hyperbaric Medical Society (UHMS) describes scientifically supported treatments as usually delivered between 1.9 and 3.0 ATA, and calls exposures below 1.5 ATA unproven. A price without a pressure tells you very little.

Chamber type. A hard-sided clinical chamber is a certified pressure vessel. UHMS expects these to meet recognised pressure vessel and fire-safety codes. A soft-shell chamber is inflatable, and many are designed for much lower pressures. The UHMS position statement on low-pressure fabric chambers notes that fabric chambers operating below 1.4 ATA are cleared in the US only for acute mountain sickness and are designed to be pressurised with air. These are different products, and their prices should not be compared as if they were the same.

Oxygen delivery. Pressure alone is not HBOT. What you breathe, and how, changes the dose. The UHMS definition of clinical HBOT uses medical-grade oxygen, and it warns that many mild hyperbaric sessions deliver much lower oxygen concentrations through masks that do not seal. Ask what you will breathe and through what.

Medical oversight. Screening, a trained operator and access to a clinician all cost staff time. UHMS recommends that physicians, or appropriately trained and supervised providers where local rules allow, are available immediately throughout treatment. A cheaper session that skips screening is a different service, not a discount.

Time at pressure. Some prices quote the whole appointment and others the time at target pressure. Pressurising and depressurising take extra minutes on top. UHMS describes clinical treatments as typically lasting 90 to 120 minutes.

Course size. Most research protocols use repeated sessions. UHMS notes that most disorders need treatment daily for several weeks. Its protocol for sudden hearing loss is 10 to 20 treatments, and a 2025 brain injury trial used 40. The total cost of a course matters more than the price of one visit.

Why is HBOT priced per session?

Because one session is rarely the unit that research studies. A single appointment tells you how the chamber feels and whether you can clear your ears comfortably. It is not expected to reproduce what a 10, 20 or 40 session protocol might do.

A per-session price lets you check three things. First, whether a course price is genuinely lower per session than paying as you go. Second, whether two providers are offering comparable time at pressure. Third, whether the course you are buying has any resemblance to the protocol in the research you have read. Our guide to how often you should have HBOT covers spacing and course length.

Can you get hyperbaric oxygen therapy on the NHS?

For a narrow set of indications, yes. NHS England's 2018 commissioning policy routinely commissions HBOT for decompression illness and gas embolism. The British Hyperbaric Association notes that NHS England has withdrawn routine funding for all other emergency and elective indications while supporting further research. According to its 2024 consultation guide, NHS England buys this service from 7 independent sector providers across 8 centres, most of them near the coast.

For decompression illness, the policy describes referrals coming from emergency departments, hospital clinicians, GPs or patients contacting a provider directly. Gas embolism referrals come from hospital clinicians. If you think you have a diving injury, call 999.

These are NHS England policies. If you live in Wales, ask your GP or specialist how a referral would work for your situation. For recovery, wellbeing and most chronic conditions, NHS hyperbaric treatment is not available, which is why private services exist. Our explainer on what hyperbaric oxygen therapy is sets out where the evidence is established.

What does HBOT cost at HBOT Medics?

We price in three ways, and every figure below is drawn from the same price list as our pricing page.

• Try one session: £95 for a 60-minute session. A proportionate first step if you want to know how the chamber feels.
• The Course: 10 sessions for £750, which works out at £75 per session. Every Course includes a doctor consultation (20 minutes, in person at Pontcanna or by phone), which costs £150 as a standalone appointment. Courses are valid for 12 months from purchase.
• Extended Course: 40 sessions for £3,000, made up of 4 linked Courses at the same per-session price.

Bought separately, ten single sessions and a standalone consultation would come to £1,100. No referral needed. Medical consultation included.

What those prices buy: a single-person soft-shell chamber operating at 1.5 ATA inside the RosMedics independent hospital in Pontcanna, a medical declaration reviewed before treatment, and an operator responsible for your session throughout. That pressure is lower than the hospital protocols behind most accepted indications, and our chamber page explains what that means when you compare our sessions with published research.

What should you ask any HBOT provider before paying?

Use the same questions wherever you are thinking of booking, including with us.

1. What pressure does the chamber reach, in ATA? If a provider cannot tell you, that is an answer in itself.
2. Is it a hard-sided or soft-shell chamber, and what do I breathe? Ask how oxygen is delivered, not only whether oxygen is involved.
3. How long is the session at pressure? Separate the treatment time from the appointment length.
4. Who screens me, and who is responsible if something goes wrong? Our guide to who HBOT is not suitable for shows what screening should cover.
5. What is included? A consultation, a declaration review and course flexibility all affect value.
6. What evidence do they cite, and at what pressure and session count? The UK's advertising regulators say in their guidance on oxygen therapy that they have yet to see convincing evidence that hyperbaric oxygen used as an alternative therapy is efficacious for health conditions. A provider listing conditions it claims to treat, without trials, is telling you something useful.

If the answers satisfy you, you can see available times or read more about the treatment first.