Experience a New Level of Endurance
Engineered to increase inspiratory (inhalation) muscle endurance, the O2 Trainer is lightweight and designed to be used while performing nearly any exercise or activity.
Whether you’re running, weight lifting, training in the martial arts or rock climbing, the O2 Trainer will train your lungs and body to perform at high levels with less oxygen, and teach them to maximize every breath.
Portable, Versatile and Designed for All Performance Levels
Start with the 13mm screen, but change the intensity of the O2 by increasing or decreasing the restriction of airflow with additional screens provided. As endurance increases, decrease the size of the insert to make your training more intense.
Whether you’re standing, sitting, or lying down, you can still exercise your lungs and diaphragm, with the Bas Rutten O2 Trainer. Pack it up and take it with you on the road to wherever you train to become your best, small pouch can be easily tucked into any bag.
Get Training Results Today!
Athletes and performers that depend on their lungs should be working out with Bas Rutten’s O2 Trainer to increase endurance, stamina and performance! Get yours today by clicking Add to Cart now!
- DESIGNED BY UFC LEGEND BAS RUTTEN: Created by world champion fighter and conditioning expert Bas Rutten, the O2Trainer is built from real-world experience. It’s the same breathing tool Bas used to push his performance to elite levels—and now it’s available to help you do the same.
- BUILD STRONGER BREATHING MUSCLES: Strengthen your diaphragm and external intercostals with just 30 reps a day. The O2Trainer helps expand lung capacity and boost oxygen efficiency during workouts, sports, or daily activity.
- CUSTOMIZABLE AIR RESISTANCE TRAINING: Includes 16 interchangeable intake caps to adjust airflow restriction and increase resistance as your inspiratory strength improves—just like progressive overload for your lungs.
- PORTABLE & EASY TO USE ANYWHERE: Lightweight, compact, and travel-ready—no batteries or apps required. Perfect for athletes, travelers, and anyone wanting to train respiratory power on the go.
- PERFORMANCE ENHANCEMENT FOR ALL: Ideal for athletes, military, singers, hikers, and climbers. Whether you're training for endurance, altitude, or voice control, the O2Trainer is your all-in-one breath trainer.
- DESIGNED BY UFC LEGEND BAS RUTTEN: Created by world champion fighter and conditioning expert Bas Rutten, the O2Trainer is built from real-world experience. It’s the same breathing tool Bas used to push his performance to elite levels—and now it’s available to help you do the same.
- BUILD STRONGER BREATHING MUSCLES: Strengthen your diaphragm and external intercostals with just 30 reps a day. The O2Trainer helps expand lung capacity and boost oxygen efficiency during workouts, sports, or daily activity.
- CUSTOMIZABLE AIR RESISTANCE TRAINING: Includes 16 interchangeable intake caps to adjust airflow restriction and increase resistance as your inspiratory strength improves—just like progressive overload for your lungs.
- PORTABLE & EASY TO USE ANYWHERE: Lightweight, compact, and travel-ready—no batteries or apps required. Perfect for athletes, travelers, and anyone wanting to train respiratory power on the go.
- PERFORMANCE ENHANCEMENT FOR ALL: Ideal for athletes, military, singers, hikers, and climbers. Whether you're training for endurance, altitude, or voice control, the O2Trainer is your all-in-one breath trainer.