The Cellgym method simulates alpine altitude effects through IHHT. In a relaxed 40-minute experience. At the push of a button, fully automated, profitable from just 1 application per day. Your enthusiastic clients book follow-up sessions. And you build the foundation for lasting revenue.
Elite athletes have used targeted oxygen stimuli in the mountains for decades to trigger physiological adaptation processes. Our method simulates this effect under controlled conditions. In any room.
Reduced oxygen levels simulate altitudes of up to 6,600 m. Your clients sit or lie comfortably with a breathing mask while the training stimulus is processed by the body.
Oxygen enrichment simulates a rapid descent. Processes associated with regeneration may be supported. The core principle of IHHT: stimulus and recovery in alternation.
Oxygen saturation, heart rate and O₂ concentration are monitored in real time. After each application, the system automatically generates a personalised report. A documented training overview for you and your clients.
Cellgym integrates into any operational workflow. Walk-in. Walk-out. Minimal preparation and follow-up effort.
Cellgym is the method we have been researching and refining for over 15 years. The Cellair systems are the devices you use to apply this method. All of them are built on the same proven safety architecture. We have simply developed them for different settings: hospital, medical practice, performance centre or hotel — and of course there is also a system designed for use at home.
Cellgym's Cellair systems are designed for maximum safety and support you in meeting that responsibility. Our patented safety architecture is built on 4 layers:
Continuous measurement of ambient pressure with dynamic, real-time adjustment of O₂ concentration. This enables reproducible protocols, regardless of location. Whether your facility sits on the coast or in the mountains.
Two independent optical sensors measure O₂ values simultaneously and continuously cross-check one another. If they deviate, the system responds before a problem can arise. The same principle that ensures safety in aerospace. Because a single sensor is never enough when failure is not an option.
The Cellair systems monitor all load parameters in real time. If a value deviates, they automatically adjust the O₂ concentration. No manual intervention, no delay. Your team is supported by automated real-time monitoring and control.
Before each application, the system records the individual baseline of your client. What follows is not a standard application. It is one tailored to that specific person. This significantly reduces the risk of incorrect exposure at system level and actively monitors against it.
Hardware, software, safety architecture, training, support. All core components are designed and integrated in-house. No third parties, no interface issues. One point of contact for everything.
Our predictive maintenance identifies potential service needs early and supports preventive upkeep. Combined with a 5-year maintenance interval, you gain long-term planning certainty. This supports high system availability and predictable operation.
Cellair Control is developed in-house and so intuitive that your team works independently after a brief introduction. The patented Hypoxic Session Index (HSI) analyses complex vital data in a structured way, making training progress, results and optimisation potential visible at a glance.
Access to the IHT Academy, regular roundtables, strategic marketing support. And a network of over 800 facilities across the DACH region actively sharing their experience. Our team stays by your side, with the same commitment as on day one. Your success with the system is our success too.
All three systems are built on the same patented safety architecture and the Cellgym method. They differ primarily in the setting they were developed for.
Our most powerful system within the Cellair series, featuring Oxygen Intelligence and the patented Hypoxic Session Index. For facilities looking to establish IHHT as a signature offering and integrate it into operations at scale.
Developed and certified for use in medical settings. CE-marked as Class IIa, including HRV real-time monitoring. For facilities with high certification requirements.
The compact solution for training in your own home. Intuitive operation and the same patented technology found in the Cellair Pro. For anyone who wants to make IHHT a lasting part of their daily routine.
Not sure which system fits your requirements? Let's clarify that together in a 15-minute call.
“Honestly? I was sceptical. Another device, another promise. Then we hit break-even within the first month. Since then, demand has been climbing noticeably, including 10-session packages. It changed my practice.”
“Our therapists were worried they wouldn’t be able to operate it. After a short training, they were working with it confidently. Today, IHHT is our most sought-after add-on service.”
“We wanted to break out of wellness interchangeability. Cellgym gives us something that clearly sets us apart from competitors in our region. And it fills the dead hours in the morning.”
“Cellgym has become indispensable in our family. For us, it is as natural and valuable as good food.”
These are individual experiences from real-world practice. Economic and operational results vary depending on location, concept and implementation.
Clients book follow-up sessions, the session runs fully automated, staff effort is minimal. When using the Cellair One, the application may be considered within a medical context, depending on individual assessment and billing system.
We guide you from the first consultation to ongoing operation. And far beyond.
We analyse your specific situation: target audience, premises, profitability. You know exactly how the system pays off in your business — before you invest.
Delivery and setup. Usually operational within 24 hours. Including the first test sessions.
We train your entire team. Structured, practical, and designed so every team member can operate the system independently afterwards.
IHT Academy, regular roundtables and strategic marketing support. You benefit from proven concepts already in use at over 800 facilities across the DACH region.
We stay by your side with 24/5 support (phone, video, on-site). Proactive monitoring identifies potential maintenance needs early and supports preventive action.
Over 4,500 installed systems show: the model works. Not in theory. Every single day.
Here you'll find our frequently asked questions. If you need further assistance, you can contact us at any time.
What is interval hypoxia training?
Interval Hypoxia-Hyperoxia Training (IHHT) is a modern form of simulated altitude training in which the oxygen content of the air being breathed is deliberately varied, while air pressure remains constant. Phases of oxygen-reduced and oxygen-enriched air alternate.
This structured alternating principle sets targeted training stimuli that draw on the same natural adaptation mechanisms that come into play at different altitudes.
The application is carried out comfortably in a reclined position via a breathing mask and can be individually tailored to each person. This creates a controlled training setting used in both professional and private environments.
Many users value IHHT as a time-efficient method to complement their personal training and provide new impulses for performance and recovery.
It should be noted that responses to IHHT can vary individually and depend on factors such as training status, intensity and duration.
For optimal calibration, we recommend carrying out the application under qualified supervision. Further information and an overview of qualified providers can be found on our website: cellgym-finder.com
How long, how often and how intensely should IHHT be carried out?
Every person is different, so there is no standardised answer to the optimal duration, frequency and intensity of IHHT. It depends on your personal circumstances, goals, bodily responses and any possible side effects. Here are a few general recommendations, however:
Duration: A typical IHHT session usually lasts 30 to 50 minutes, with hypoxia and hyperoxia phases of 3–5 minutes each.
Frequency: For a training period of four to six weeks, we ideally recommend two to three IHHT sessions per week, to give your body enough time for adaptation and recovery.
Intensity: During the hypoxia phases, oxygen concentration typically ranges between 10% and 15%, which corresponds to a simulated altitude of around 3,000 to 5,000 metres.
What happens in the body during hypoxia?
During hypoxia — a controlled reduction of oxygen content in the air being breathed — the body responds with natural, physiological adaptation mechanisms.
Within a short time, respiration and the cardiovascular system adjust to the altered oxygen availability: breathing rate may increase and the heart works more actively to continue supplying the body with oxygen.
At the same time, adaptive processes are triggered at the cellular level, aimed at optimising the efficiency of oxygen utilisation. These reactions are part of the body’s own regulatory capacity and depend, among other things, on individual training status, the duration and the intensity of the stimulus.
This principle is comparable to the adaptation responses that also occur at natural altitudes, but under controlled and reproducible conditions.
How much does an IHHT treatment typically cost?
The cost of an IHHTsession can vary depending on the provider, location and level of supervision. In practice, the price for a single session generally ranges between approximately €50 and €100. Differences arise primarily from the following factors:
Provider and setting: Treatments with specialised therapists, physicians, or within high-end longevity and wellness concepts tend to be priced higher than in basic studio environments.
Individual programme: Many users opt for structured programmes spanning several weeks, including multiple sessions per week. This results in total investments that go beyond the single-session price.
Technology and supervision: The quality of the systems used, the precision of control, and the professional guidance play a decisive role in the overall experience and can also be reflected in the price.
In principle: IHHT/IHT is currently offered predominantly as a self-pay service and is generally not a standard health insurance benefit.
Is real altitude training healthy?
Real altitude training can trigger positive adaptation processes in the body, particularly when planned deliberately and individually tailored.
The reduced oxygen content at higher altitudes represents a natural stimulus to which the body responds with physiological adaptations, such as changes in respiration, the cardiovascular system and oxygen utilisation.
At the same time, it is important to understand that training at real altitude is less controllable and strongly dependent on external factors such as altitude level, duration of stay and individual tolerance.
Exposure to altitude that is too rapid or too intense can lead to temporary symptoms such as headache, dizziness or malaise. These reactions are known adaptation processes of the body but require attention and, if necessary, an adjustment of the load.
In principle: Altitude training can be meaningful when used in a structured and deliberate way — ideally under conditions that allow controlled and reproducible management of the stimulus.
How does IHHT differ from real altitude training in the mountains?
IHHT and classic altitude training are both based on the principle of reduced oxygen availability — but differ fundamentally in terms of control and application. The key difference lies in control.
Controlled conditions: IHHT takes place in a precisely controllable environment in which oxygen concentration, duration and intensity can be adjusted in a targeted way. Training in the mountains, by contrast, is dictated by altitude, weather and duration of stay, and can only be influenced to a limited extent.
Structured sequence: IHHT works with short, repeated alternations between hypoxia and recovery phases. At real altitude, exposure is continuous over extended periods.
Individual adaptability: IHHT can be flexibly adjusted to personal conditions and goals. Classic altitude training offers this kind of individualisation only to a limited extent.
Practical implementation: IHHT is independent of geography and can be integrated into existing training or recovery concepts. Altitude training, on the other hand, requires travel to specific regions and involves considerably more organisational effort.
In summary: While altitude training is based on natural but hardly controllable conditions, IHHT enables targeted and reproducible application under controlled circumstances.
How can the safety of the person training be ensured during IHHT?
Safety in IHHT is based on a structured and controlled approach that takes individual conditions and the body’s current responses into account. Three key principles are central:
Individual baseline assessment: Before starting, the personal baseline is considered in order to align the training appropriately and avoid overexertion.
Controlled management: The intensity and duration of hypoxia phases are adjusted in a targeted way, so that the load remains within the intended range and can be responded to flexibly.
Continuous observation: During application, relevant physiological parameters such as heart rate and oxygen saturation are monitored, so that the body’s response can be understood and, if necessary, adjusted.
Subjective perception also plays an important role, as the body provides early feedback that can be incorporated into the management of the session.
In summary: Safety in IHHT arises from the interplay of individual adaptation, controlled application and continuous observation — not from rigid specifications.
Should IHHT be used as a preventive measure?
IHHT can be applied as part of a prevention-oriented lifestyle, as it is based on targeted, physical stimuli to which the body responds with natural adaptation mechanisms.
It is essential that the application is individually tailored and takes personal conditions into account. Because, as with all training or recovery methods, intensity, scope and objectives can be shaped differently.
IHHT should not be viewed as an isolated measure, but as part of a holistic approach that includes factors such as exercise, nutrition, recovery and lifestyle.
In summary: IHHT can be a meaningful addition to a conscious, prevention-oriented lifestyle — provided the application is carried out in a structured and individually adapted way.
