Oxygen Oasis: Normobaric Chamber near London, in Fulmer, Buckinghamshire
Normobaric chamber for Your Health
Tired even after sleeping? Stressed even when nothing is happening? Recovering slower than you used to?
Your body might not need more stimulation.
It might need a better environment to recover in.
Oxygen Oasis gives you two quiet hours inside a controlled chamber environment using increased pressure, oxygen, carbon dioxide and hydrogen.
No workout. No cold plunge. No mask. No noise.
Just sit back, switch off and let your body do what it already knows how to do.
2-hour sessions●40 mins away from Marylebone●Standard & VIP seating
Next available sessions
Opening hours follow the booking calendar. Each session is two hours.
Times come straight from the booking system, so a time shown here can always be booked. Seat numbers are never shown.
Recovery has become exhausting.
Ice baths.Supplements.Saunas.Wearables.Breathwork.Red light.Caffeine.
Most people are adding more and more things to their routine.
Oxygen Oasis is different.
- You sit down.
- You switch off.
- The environment does the work around you.
Two hours inside a carefully balanced chamber designed around pressure, oxygen availability, carbon dioxide, hydrogen and low-stimulation rest.
Does this sound familiar?
That is exactly the kind of person Oxygen Oasis was built for.
Normobaric chamber
What does a session actually feel like?
Think business-class lounge, not medical chamber.
- 1You walk in.
- 2Take your seat.
- 3Get comfortable.
- 4Read, work, watch something, sleep or do absolutely nothing.
The chamber creates a controlled environment of:
- 1.5 ATA / 1,500 hPa pressure
- 38-40% oxygen
- 1.5-2% carbon dioxide
- 0.5% hydrogen
And then you simply spend two hours inside it.
No oxygen mask. No cold. No needles. No exercise.
Oxygen
Carbon Dioxide
Hydrogen
Don’t take our word for it.
Read what people who have actually sat inside the chamber say.
Oxygen Oasis
Read Our Google Reviews
New to Oxygen Oasis?
Start with one session if you'd simply like to experience the chamber.
If your goal is sleep, energy, mobility, recovery or ongoing wellbeing, repeated sessions provide a much better opportunity to assess how your body responds over time.
Seasonal look
New client offer
First visit£29.99
Two hours in the chamber, hydrogen-rich water included. For new clients.
View New Client OfferHealth applications
Why do people come back?
Not because sitting in a chamber for two hours is exciting.
Because people are interested in how they feel afterwards and across repeated sessions.
Clients come to Oxygen Oasis for things like:
Energy
Feeling less drained and more resilient.
Sleep
Supporting deeper rest and better recovery routines.
Stress
Two hours where the body can finally downshift.
Recovery
After training, physical strain, procedures or demanding weeks.
Mobility
For stiffness, heavy legs and physical comfort.
Longevity
Supporting the systems involved in energy, repair and healthy ageing.
Brain Fog
For people who want to feel sharper, clearer and less mentally exhausted.
Skin & Anti-Ageing
Supporting skin vitality, elasticity, collagen activity and healthy ageing.
Real client journeys
See what we’ve actually documented.
We follow selected Oxygen Oasis clients over repeated sessions using interviews, video and progress photographs to record their individual journeys as they happen.
Ongoing client journey
Living with Parkinson’s
An ongoing documented journey
A mother and daughter began attending Oxygen Oasis on 20 May 2026. Their journey has been documented through interviews, repeated-session observations and video, including a comparison of the mother’s walk into the chamber between her first and fifth sessions.
View Parkinson's Case StudyVisual progress record
Psoriasis
A documented visual progression
Progress photographs documented the same affected area before the client’s first Oxygen Oasis session and again after five sessions, creating a direct visual record of its appearance over time. He continues to attend once each week.
View Psoriasis Case StudyHealth applications
Looking for something more specific?
Explore our full Application Library, covering neurological wellbeing, recovery, skin and tissue health, fertility, metabolic health, inflammatory load and more.
Oxygen Oasis applications are presented as supportive wellbeing and research-interest areas. The focus is on pressure, oxygen availability, CO₂-supported oxygen release, hydrogen/redox biology, recovery and quality-of-life support. Individual responses vary.
No applications match that search.
The biology behind Oxygen Oasis
Why can one chamber be relevant to so many different areas?
Because Oxygen Oasis is not designed around one organ, one symptom or one biological pathway.
The chamber combines pressure, oxygen, carbon dioxide and molecular hydrogen with systems used throughout the entire body.
- 011.5 ATA / 1500 hPa
Increased Pressure
Increased atmospheric pressure changes how gases behave in the body. Under pressure, more oxygen can dissolve into blood plasma and other body fluids, increasing oxygen availability beyond the oxygen carried by haemoglobin alone.
- 0238–40% oxygen
Increased Oxygen
The chamber contains significantly more oxygen than normal air. Combined with increased pressure, this creates a different oxygen environment and increases the amount of oxygen available throughout the session.
- 031.5-2% CO₂
Controlled Carbon Dioxide
Carbon dioxide is deliberately added. Increasing oxygen availability is only useful if oxygen can also be released effectively from haemoglobin into the tissues where it is needed.
- 040.5% H₂
Molecular Hydrogen
Molecular hydrogen adds another biological pathway. It is studied in relation to redox balance, oxidative stress, inflammatory signalling, mitochondrial function and cellular protection.
Why deliberately add carbon dioxide?
Because of the Bohr effect. Higher CO₂ and the associated local change in pH reduce haemoglobin's affinity for oxygen, encouraging haemoglobin to release oxygen more readily into tissues. Oxygen increases what is available. CO₂ helps support its release where the body needs it.
Pressure changes gas behaviour.Oxygen increases availability.CO₂ supports oxygen release through the Bohr effect.Hydrogen interacts with redox and inflammatory biology.
Foundational biology
Different goals can depend on the same underlying systems.
Skin, muscles, the brain, joints and the immune system may seem unrelated, but they share many of the same biological requirements.
- Oxygen Availability
- Cellular Energy
- Circulation & Tissue Delivery
- Stem & Progenitor Cells
- Mitochondrial Function
- Redox Balance
- Inflammatory Signalling
- Nervous-System Recovery
Stem cell spotlight
The body's raw materials
Stem cells are not responsible for everything the body does, but they play a foundational role in how it is built, maintained and repaired. They are unusual because they can divide to create more stem cells and can also develop into specialised cells used by different tissues.
50–300%
Increase in stem cell production
Measurements carried out by Dr Jan Pokrywka in the normobaria environment found stem-cell production increased by approximately 50–300%, together with mobilisation of stem and progenitor cells.
Up To 4 Days
Peaks, then eases
According to Dr Pokrywka's measurements, the stem-cell response is highest on the first day after a session. It then eases gradually over the following days, returning to normal baseline levels by around day four.
- 01
Build
During growth and development, stem cells give rise to specialised cells that form tissues and organs throughout the body.
- 02
Maintain
The body is constantly replacing cells. Stem-cell populations help replenish tissues such as blood and skin throughout life.
- 03
Repair
When tissue is injured or stressed, stem and progenitor cells can be activated and mobilised as part of the body's repair and renewal response.
What makes stem cells different from ordinary cells?
Most cells are already specialised. Muscle cells contract, neurons transmit signals and red blood cells carry oxygen.
Stem cells are different because they can self-renew and, depending on their type and the signals around them, develop into specialised cell types.
Are stem cells responsible for everything in the body?
No. Think of them as biological raw materials and part of the body's repair reserve.
They do not carry out every daily function themselves. Once a stem cell becomes specialised, that specialised cell performs its own role.
Why does the four-day response matter?
The chamber session lasts two hours, but the biological response does not necessarily stop when the session ends.
According to Dr Pokrywka's measurements, the stem-cell response is highest on the first day after a session, then eases gradually and returns to baseline by around day four. This is one reason repeated exposure forms an important part of the normobaria concept.
What does mobilisation mean?
Mobilisation refers to stem and progenitor cells being released from their normal reservoirs, such as bone marrow, and entering the circulation.
This makes them available as part of the wider biological response involved in tissue maintenance and repair.
The bigger picture
Stem cells are only one part of the system.
The body depends on multiple biological systems working together. The chamber should not be understood as acting through one mechanism alone.
Stem Cells
Raw materials involved in growth, maintenance, renewal and repair.
DNA & Genes
Biological instructions that guide how cells develop and function.
Mitochondria
Produce ATP, the usable energy cells need to carry out their work.
Proteins & Enzymes
Molecular machinery responsible for structure, signalling and chemical reactions.
Circulation
Moves oxygen, nutrients, hormones and other resources around the body.
Nervous & Endocrine Systems
Coordinate electrical and hormonal communication throughout the body.
Immune System
Coordinates defence, inflammatory signalling, surveillance and repair responses.
Oxygen & Nutrients
Provide essential resources needed for energy production and normal cellular function.
Different goals. Shared biology.
Someone interested in sports recovery, skin health, brain fog or healthy ageing may appear to be looking for completely different things. Underneath those goals, however, are many of the same biological systems.
- Energy
- Sleep
- Brain Fog
- Recovery
- Mobility
- Skin
- Healthy Ageing
- Sports Performance
- Tissue Repair
- General Wellbeing
This is why one chamber environment can be relevant across so many different applications. It works with foundational biological systems rather than targeting only one isolated body part.
Stem-cell figures shown above reflect measurements reported by Dr Jan Pokrywka in connection with the normobaria environment. Individual biological responses can vary.
“But I’ve never heard of a normobaric chamber.”
That is normal.
The concept is far more established in Poland than it is in Britain.
Oxygen Oasis is based on the normobaria model developed by Polish physician Dr Jan Pokrywka, combining increased atmospheric pressure with oxygen, carbon dioxide and hydrogen.
We built Oxygen Oasis because we believed people in Britain should have access to the same type of chamber environment our own family had experienced in Poland.
What if you don’t feel “unwell”?
Good.
Oxygen Oasis is not only for people trying to recover from something.
- Some clients come because they train hard.
- Some work long hours.
- Some sleep badly.
- Some want to age better.
- Some simply want two hours where nothing is demanding anything from them.
You do not need to wait until your body is struggling before you start looking after it.
FAQ
Everything You Need to Know Before Your First Visit
We’ve gathered the most common questions about normobaric oxygen therapy, how sessions work, and what you can expect at Oxygen Oasis.
Will I feel the pressure?
Yes. As the chamber pressure changes, your ears may feel similar to being on a plane during take-off or landing. The team will explain how to equalise your ears before the session and can guide you if you need help.
Is the chamber claustrophobic?
No. Oxygen Oasis is a spacious seated chamber rather than a small enclosed pod. You can see around you, sit comfortably and communicate with the team during the session. If you are worried about confined spaces, speak to us before booking.
What can I do during the two hours?
Whatever helps you switch off. Read, work, watch something with headphones, listen to music, rest or sleep. Hydrogen-rich water is included during the session.
What should I wear or bring?
Wear comfortable clothes. You are seated for around two hours, so comfort matters. You can bring a phone, tablet, book, laptop or headphones.
How often should I come?
That depends on what you're working with. For general wellbeing and energy, once a week works well. For chronic pain, inflammation or ongoing recovery, more frequent sessions tend to give the best results. Many clients start with a few sessions close together to feel the effects, then settle into a regular rhythm that works for them and can use oxygen therapy as maintenance for various conditions.
Why are sessions 2 hours long?
Two hours gives your body enough time to fully absorb the benefits of the tri-gas environment. The first 20 to 30 minutes your body is settling in and adjusting. The real cellular work happens in the time after that. Shorter sessions simply don't give your cells long enough to respond properly. Most clients find the time goes quickly, you can read, watch something, scroll your phone or just rest. Many people tell us it's the most relaxing part of their week.
How does this differ from hyperbaric oxygen therapy?
Hyperbaric oxygen therapy (HBOT) runs at pressures of 2.0 ATA or higher and requires you to lie alone inside a sealed pressurised pod. It's effective for certain medical conditions but the intensity puts many people off, and it isn't accessible or comfortable for everyone. At Oxygen Oasis, you sit comfortably in a spacious room. No tubes, no masks, no claustrophobia.
Designed atmosphere
Why choose a 10-session package?
One session gives you a first experience of the chamber.
A 10-session package gives you around 20 hours in the Oxygen Oasis environment, creating a better window to observe how you feel across areas such as sleep, energy, stress, stiffness, mobility, focus, recovery and general wellbeing.
Some clients simply enjoy the chamber experience. Others prefer a more guided approach with light progress check-ins.
No heavy tracking. No homework. Just a more meaningful way to experience Oxygen Oasis properly.
Experience Oxygen Oasis properly across 10 sessions
1 session: a first experience10 sessions: around 20 hours
The Oxygen Oasis chamber
More Space. More Comfort. A Different Kind Of Chamber.
Designed around relaxed two-hour sessions, with spacious Standard seating, a private VIP area and a carefully controlled normobaric atmosphere.
Standard Zone
VIP Zone
Oxygen Oasis uses a normobaric chamber environment based on the Polish normobaria concept developed by Dr Jan Pokrywka. The chamber uses increased atmospheric pressure of 1.5 ATA / 1500 hPa, with oxygen, carbon dioxide and hydrogen.
There has been no research yet into the effects of normobaric oxygen therapy in people with Parkinson's.
We don’t endorse or recommend any specific complementary therapies, but do encourage anyone affected by the condition who is interested to explore what works for them.
Choose your seat
Standard or VIP Zone
Our chamber offers 10 comfortable seats in the Standard Zone and 4 exclusive seats in the VIP Zone. Choose everyday comfort or a private jet–style wellness experience.
Standard Zone
Comfort for Every Session
Enjoy your therapy in one of 10 spacious reclining chairs, designed for relaxation and ease. The Standard Zone combines modern design with comfort and tranquility, giving you a premium wellness experience every time you visit.
- Single
- £68
- 5 sessions
- £306
- 10 sessions
- £544
VIP Zone
Wellness with a Private Jet Feel
Relax in one of just 4 exclusive lounge-style seats, designed for exceptional privacy, comfort, and personal space.
The VIP Zone offers a refined and intimate environment where luxury meets wellness, created for guests seeking the most elevated Oxygen Oasis experience.
Enjoy complimentary organic tea and freshly prepared coffee during your session as you unwind, recharge, and experience private jet-inspired comfort.
- Single
- £128
- 5 sessions
- £576
- 10 sessions
- £1,024
Bonus experience
Hydrogen-Rich Water Included in Every Session
Enjoy freshly prepared hydrogen-rich water during your session, containing dissolved molecular hydrogen (H₂) as part of the Oxygen Oasis experience.
Molecular hydrogen has attracted growing research interest for its role in antioxidant and redox biology, inflammatory signalling, cellular protection and metabolic function.
Its roots go back decades. Molecular hydrogen research has developed over several decades, with Japan playing a major role in the early use and study of hydrogen-rich and electrolyzed reduced water.
Research areas of interest
- Antioxidant and redox support
- Anti-inflammatory
- Hydration
- Recovery
- Healthy ageing
- Cellular and metabolic function
Location & accessibility
Easy train connections from Central London
Located in Fulmer, near Gerrards Cross, Oxygen Oasis is only 40 minutes from Central London and just a short drive from Heathrow Airport.
Oxygen Oasis, Windmill Road, Fulmer, SL3 6HD, UK
Boost your health naturally
Normobaric oxygen chambers are high-tech wellness devices where pressure, oxygen, and carbon dioxide levels are elevated in a precisely controlled environment. This unique combination enhances regeneration, improves circulation and tissue oxygenation, and accelerates the delivery of nutrients to cells.
2-hour sessions●Near London●Standard & VIP seating