The O2Trainer 2.0
The O2Trainer 2.0
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The O2Trainer 2.0 Breathing Resistance Training System is the ultimate tool for athletes, fitness enthusiasts, and anyone looking to improve breathing performance, endurance, and core strength. Developed by MMA legend Bas Rutten, this system targets and strengthens your diaphragm and breathing muscles by controlling airflow during inhalation.
Level up your breath. Level up your training.
Daily Energy
Stay Calm
Sleep Better
Peak Performance
Less Pain
Respiratory Training Made Simple
Whether you're an athlete, recovering from lung challenges, or simply seeking better wellness, our device makes lung training accessible, effective, and life-enhancing.
Energy
Boost your daily vitality by improving oxygen efficiency — no crash, just lasting natural energy.
Sleep
Better breathing helps you relax deeper, leading to more restful and restorative sleep.
Calm
Train your breath to stay centered and in control, even under stress or pressure.
Endurance
Strengthen your lungs to go farther and last longer in workouts and daily activities.
Relief
Support lung function and reduce breath-related discomfort for easier, smoother breathing.
Performance
Unlock peak physical output with stronger lungs that fuel your body and mind.
Real Results, Real People
See how the O2Trainer is helping athletes, fitness enthusiasts, and everyday people breathe stronger and perform better.
It's made a huge difference in my training and health.
Who is it for?
Stronger lungs mean stronger performance. Training your breathing system improves oxygen efficiency, endurance, recovery, and overall resilience.
Controlled breathing exercises can help manage asthma symptoms and improve lung function through targeted respiratory training.
Respiratory training can help improve breathing efficiency and quality of life for those managing COPD symptoms.
Breathing exercises are a proven technique for managing stress, anxiety, and PTSD symptoms through controlled respiratory training.
Meet the Founder
Bas Rutten
2015 UFC Hall of Fame
From professional athletes to everyday people dealing with respiratory challenges, the O2Trainer has become a game-changer in breathing wellness.