Bas Rutten O2 Trainer - Official Workout Device for Respiratory Training and Lung Muscle Fitness - Portable Breathing Mouthpiece for High Altitude and Power Training (Green)
- ... and is like dumbbells for your diaphragm..
- A Trusted Company for Over 20 Years - This patented device has been tested and proven by extensive research and clinical studies to provide you with the best results within 4 weeks. Trusted by sports teams, professional athletes, respiratory therapists, fitness centers, fire departments, and sports medicine facilities..
- Easy to Use for Breathing Deeply - Are you ready to improve your lung capacity for greater health and fitness via improved oxygenated blood flow? With our POWERbreathe Lung Trainer, you can enjoy results within 4 weeks! Simply use for 30 breaths twice daily to increase the strength, endurance, and fitness of your inspiratory muscles..