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Developed based on decades of

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Flexible testing, ideal for clinics and sports teams.

Gruber CO₂ Systems

Cardisuit Complete System CHF 2,054.00

Cardihaler CHF 810.00

Relaxator CHF 37.00

CO₂ Event on October 31, 2026 - The Basics of CO₂ Therapy from CHF 80.00

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Gruber CO₂ Systems: Innovative Devices for CO₂ Training & Breathing Training

As a breathing coach and CO₂ expert, Roman Gruber from Switzerland shares what he has learned through more than 20 years of practical experience and in elite sports. With the tried-and-true devices from Gruber CO₂-Systems, you’ll learn how calm, mindful breathing can support your recovery, focus, and composure in everyday life.

Targeted Recovery Through CO₂ Training: What Our Equipment Can Do

Fast and sustainable recovery depends heavily on how you breathe. Our devices for CO₂ and breathing training help your body relax more efficiently. That’s because carbon dioxide—CO₂ for short—is not merely a waste gas, but a regulatory signal for blood vessels and oxygen delivery to tissues. With targeted CO₂ training, you can therefore build up your natural CO₂ tolerance and help your body recover after exercise. Whether as part of your daily athletic routine or during therapeutic sessions, our products make it easy to implement targeted breathing therapy both at home and in a clinical setting.

Systemically Guided Breathing Exercises & Roman Gruber’s Expertise

The biological foundation of health begins with the power of targeted breathing exercises and breath awareness. Based on this principle, the tried-and-true CO₂ products from Gruber CO₂-Systems are backed by Roman Gruber’s in-depth knowledge. After all, conscious breathing has been a part of Roman’s life since childhood. First through martial arts and a stay at a Shaolin monastery in China, and later through elite sports and as part of his military training. As a certified Peakwolf breathing therapist, a holistic certified vital substance therapist, and a nutrition coach, Roman Gruber has been studying biochemistry, micronutrients, metabolism, and gut health for over 20 years.

As an expert in conscious breathing, trainer and therapist Roman Gruber uses his CO₂ systems to sustainably optimize cellular performance, stress regulation, and a controlled breathing rate. However, the focus is on the applications themselves: simple breathing exercises suitable for everyday use, supported by breathing therapy devices that can be used independently at home or with professional guidance.

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What's New

Cardihaler Regulator CHF 52.00

FaceFormer ZERO CHF 42.00

Cardihaler CHF 810.00

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Why CO₂ Breathing Training?
The Story of Roman Gruber.

From practicing martial arts as a child to training as a breathing therapist—breathing has been a constant in Roman Gruber’s life. After undergoing surgery on his cervical spine, he experienced firsthand the potential of targeted CO₂ breathing training. This experience led to the creation of Gruber CO₂ Systems, with the goal of providing people, athletes, therapists, and doctors with a scientifically grounded approach to breathing.

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Real Results Through Better Breathing

Simon Reichel, M.D.

Board-Certified Specialist in General Internal Medicine (FMH)

Especially when managing exercise loads in athletes or addressing energy instability in patients with fatigue syndromes, there is often a risk that a well-intentioned treatment recommendation—such as IHHT—could initially cause even more harm and exacerbate recovery deficits. This is where CO2 therapy / the Cardisuit is ideal. It is gentle, relaxing, restorative, and optimizes the body’s functions. This is because it can effectively target the central key mechanism: the parasympathetic nervous system.

Sascha Käsermann, M.D.

Board-Certified Specialist in Orthopedic Surgery and Traumatology

Ever since I started using the CO2 dry bath in the Cardisuit after intense workouts, heavy legs, sore muscles, and long recovery periods are no longer an issue. Recovery is top-notch 👍

Klaus W.

I’ve often felt exhausted and overworked in recent months. Since I’ve been doing CO₂ training with the Cardihaler every morning and evening, I’ve felt significantly more energetic. The people around me have noticed it, too. I’m more present and stable in my daily life. The workout is short, straightforward, and I can even do it outdoors in nature. It really does me good, and I feel like my body overall relaxes more quickly and recovers better. And even my skin has improved.

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Gruber CO₂ Systems Magazine

Muskelkater verstehen & schneller regenerieren: Was wirklich hilft

Understanding Muscle Soreness & Recovering Faster: What Really Helps

Anyone who trains intensively, tries out new movements, or performs unfamiliar eccentric exercises is familiar with the physical sensation that follows in the days afterward: muscle soreness.

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Mouth Taping: Wie es die Umstellung auf Nasenatmung & Schlaf unterstützen kann

Mouth Taping: How It Can Help You Switch to Nasal Breathing and Improve Sleep

Our nose is a remarkably well-equipped organ. It filters dust and particles from the air we breathe, moistens it, and brings it to body temperature before it reaches the lungs. On top of that, there’s a detail that hardly anyone knows: our sinuses constantly produce nitric oxide, a signaling molecule that travels downward with the inhaled air, where it has vasodilatory and antimicrobial effects. However, when we breathe through our mouths—especially at night—this entire process is bypassed. The air enters cold, dry, and unfiltered.

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Atmest du falsch - Mann in den Bergen atmet mit ausgebreiteten Armen

Are You Breathing "Wrong"? 5 Facts About CO₂ That Might Change the Way You Think

Maybe you've taken a deep breath before to calm yourself down—completely intuitively, without giving it much thought. But have you ever asked yourself what your body actually needs in that moment?

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Device-Assisted Breathing Therapy: The Power of Targeted Breathing Exercises in Everyday Life

Through innovative CO₂ products, we combine scientific respiratory therapy with the simple practice of soothing breathing exercises. This is because, in the midst of stressful daily life, many people fall into a state of chronic overbreathing, which flushes valuable carbon dioxide out of the tissues. However, contrary to its outdated classification as a mere waste gas, carbon dioxide is a vital regulatory signal in the body. It regulates blood vessel diameter by ensuring the efficient delivery of oxygen.

A professionally designed breathing therapy uses our easy-to-use tools to regulate the body’s blood gases through targeted stimuli. By regularly performing a calming breathing exercise, the body learns to shed unhealthy breathing patterns and increase its CO₂ tolerance. Gentle CO₂ breathing using specialized breathing tools opens up entirely new possibilities for your physical performance.

Cellular Training with a Modern Breathing Trainer Device

Incorporate an effective breathing trainer device into your recovery phases. To easily and safely integrate this healthy regulation into your daily routine, a field-tested breathing trainer device—which works mechanically and enhances your awareness of your breath—is the ideal support. It artificially slows your exhalation through precise resistance and noticeably shifts your autonomic nervous system into a regenerative state. Discover the variety offered by the high-quality CO₂ products from Gruber CO₂-Systems and support your body at the cellular level.

What relaxation exercises are available to support CO₂ training?

Suitable accompanying breathing practices include slowed diaphragmatic breathing, gently prolonging the exhalation phase, or the classic Buteyko method. These simple techniques can be optimally combined with a mechanical breathing trainer, such as our easy-to-use Cardihaler, LINK-text: Experience our Cardihaler breathing trainer here, to physiologically raise CO₂ levels in the tissues.

Are there products that support breathing exercises for stress relief?

Yes, mechanical breathing trainers—such as our handy Relaxator [LINK text: Discover our Relaxator breathing trainer here]—provide excellent support for these breathing exercises by offering controlled resistance and slowing the breathing rate without requiring any complicated techniques.

Breathing trainers focused on breath awareness vs. lung training devices

It’s important to make this distinction, because those looking for a lung training device usually mean strengthening the respiratory muscles through resistance. Our devices are primarily breathing trainers. They work on breath control and CO₂ tolerance, not on maximum lung capacity. For those who want to practice consciously with gentle breathing resistance, our Relaxator comes closest to the concept of lung training, as it creates a slight resistance during exhalation.

As a holistic vital substance therapist, Roman Gruber knows from decades of therapeutic practice that athletes and people who are active in their daily lives alike benefit from optimized respiratory chemistry and a trained respiratory drive. Every breathing device we offer has been carefully selected to promote your awareness of your breath in daily life and sports, as well as your recovery.

Targeted breath control with field-tested CO₂ systems from a certified vital substance therapist

Conscious breath control has been specifically employed by certified vital substance therapist Roman Gruber for many years to fully harness physiological performance potential. This is because only physiologically optimized breath control lowers the respiratory rate, protects the heart, and prevents chronic, stress-inducing hyperventilation. It ensures a steady supply of oxygen to the body. Through our mechanical breathing trainers and innovative CO₂ products, your body can learn, step by step—even under stress and during physical exertion—to remain calm.

How can breathing exercises, relaxation, and recovery be combined?

The combination of mental calm and physical recovery is best achieved through the biochemistry of your breath. By regularly performing conscious breathing exercises for relaxation, you directly stimulate the vagus nerve. This nerve has a calming effect on the heart and circulatory system and also reduces the release of stress hormones in the body.

Which breathing training devices are recommended?

We particularly recommend mechanical resistance trainers such as the Relaxator for an easy start, the Cardihaler for intensive CO₂ training, and the FaceFormer for anatomically targeted strengthening of the mouth and respiratory tract. In addition, our gentle “Sleep Tape” patches support healthy nasal breathing throughout the night.

Gruber CO₂ Systems: Innovative Devices for CO₂ Training & Breathing Training

Targeted Recovery Through CO₂ Training: What Our Equipment Can Do

Systemically Guided Breathing Exercises & Roman Gruber’s Expertise

Why CO₂ Breathing Training? The Story of Roman Gruber.

Device-Assisted Breathing Therapy: The Power of Targeted Breathing Exercises in Everyday Life

Cellular Training with a Modern Breathing Trainer Device

What relaxation exercises are available to support CO₂ training?

Are there products that support breathing exercises for stress relief?

Breathing trainers focused on breath awareness vs. lung training devices

Targeted breath control with field-tested CO₂ systems from a certified vital substance therapist

How can breathing exercises, relaxation, and recovery be combined?

Which breathing training devices are recommended?

Why CO₂ Breathing Training?
The Story of Roman Gruber.