Hyperbaric oxygen therapy in Wales
Hyperbaric oxygen therapy is thinly provided across Wales. Our chamber is in Cardiff, it is clinician-led, and every patient is screened before their first session. This page covers what HBOT is genuinely evidenced for, what the NHS will and won't fund, and how to reach us from across the country.
The Mews, 38 Cathedral Road, Cardiff CF11 9LL · One chamber, serving Wales
Where you can actually get HBOT in Wales
Hyperbaric provision in the UK is concentrated near the coast and around diving-medicine centres, because treating decompression sickness is what those units were built for. That history still shapes the map, and Wales is not well served by it.
NHS hyperbaric treatment is available for a defined set of conditions and reached by consultant or emergency referral — you cannot self-refer. For everything outside that list, including recovery and fatigue, the NHS does not provide hyperbaric oxygen anywhere in the UK, and private clinics are the practical route.
Our chamber is in Cardiff. Read the detail on hyperbaric oxygen therapy in Cardiff, or the full explainer on what the NHS does and doesn't fund.
What HBOT is actually evidenced for
Hyperbaric oxygen has a genuinely strong evidence base for some things and a weak one for others. Most clinics present those as a single undifferentiated list. Here is the honest split.
Decompression sickness · carbon monoxide poisoning · non-healing wounds such as diabetic foot ulcers · late radiation tissue injury · compromised skin grafts · serious soft-tissue infection
Strong trial evidence. These are the NHS-commissioned indications and the NHS is the right route for them.
Post-surgical and injury recovery · athletic recovery and training load · persistent fatigue · cognitive symptoms
Plausible mechanism and encouraging early studies, but not settled science. This is where most private HBOT sits, and we say so.
Dementia · autism · cancer · anti-ageing · most chronic conditions HBOT is marketed for online
Not established uses. UK advertising rules have been enforced against providers claiming otherwise, and we do not make these claims.
More detail: HBOT benefits and what the evidence shows · side effects and safety · what a hyperbaric chamber is
Reaching us from across Wales
Hyperbaric oxygen is given as a course, not a single visit. That makes travel time worth thinking about properly before you book.
Cardiff
Our chamber is at The Mews, 38 Cathedral Road, CF11 9LL — about 10 minutes from Cardiff Central.
Newport & Gwent
Around 20–30 minutes down the M4, or 15 minutes by train to Cardiff Central.
Swansea & the West
Roughly an hour along the M4, with direct trains running regularly.
Bridgend & the Vale
Porthcawl, Cowbridge, Barry and Penarth are all inside about 30 minutes.
The Valleys
Pontypridd, Caerphilly and Merthyr run straight down the A470 — 25–40 minutes.
Mid & North Wales
We have no site north of Cardiff. Patients do travel, but a course of sessions is worth planning honestly before you commit.
If you're looking at HBOT because you're exhausted, read this first
Hyperbaric oxygen raises how much oxygen dissolves in your blood plasma. It does not change why your blood was delivering too little oxygen in the first place.
In the UK, one of the most common and most treatable reasons is iron deficiency. Iron is what haemoglobin is built from — without enough of it, your red blood cells simply cannot carry a normal oxygen load, however much oxygen you breathe. It is common in women with heavy periods, in pregnancy, and after surgery or blood loss, and it is frequently missed.
It is diagnosed with a ferritin blood test, and it is treatable. Ruling it out first is cheaper than a course of anything, and if it turns out to be the answer, it is the answer.
Hyperbaric oxygen therapy in Wales — common questions
Private hyperbaric oxygen therapy is available in Wales at a small number of clinics, including IronOx Clinic on Cathedral Road in Cardiff. NHS hyperbaric provision in Wales is very limited and reserved for specific commissioned conditions such as decompression sickness and non-healing wounds, usually via consultant referral to a specialist unit.
Provision in North Wales is limited, and IronOx Clinic does not have a North Wales site — our chamber is in Cardiff. We would rather tell you that plainly than build a page implying otherwise. North Wales patients who choose to travel are welcome, and it is worth planning around the fact that hyperbaric oxygen is normally given as a course of sessions rather than a one-off visit.
The NHS funds hyperbaric oxygen therapy across the UK for a defined list of conditions — decompression sickness, arterial gas embolism, carbon monoxide poisoning, certain non-healing wounds and radiation tissue injury — accessed by consultant or emergency referral. It is not funded anywhere in the UK for fatigue, recovery or general wellbeing.
Hyperbaric oxygen is dose-dependent, so it is given as a course rather than a single session. Recovery and wellbeing protocols commonly run 10 to 20 sessions over several weeks. Clinical protocols for wound healing can run 20 to 40. Anyone promising a result from one session is overselling it.
No GP referral is required for private hyperbaric oxygen therapy at IronOx Clinic, but you do need to be screened before your first session. Standalone HBOT is booked by phone specifically so we can check suitability first — some lung conditions, recent ear surgery, active ear infections and certain chemotherapy drugs make hyperbaric oxygen unsafe.
It depends on the use. HBOT has a strong evidence base for decompression sickness, carbon monoxide poisoning, non-healing wounds, radiation injury and failing skin grafts. For recovery support, training load and fatigue, research is active and promising but not settled. We grade our claims rather than presenting all of them as proven.