O2Trainer Breathing Muscle Training Device | Lung Power & Endurance Tool for Athletes, Singers & High-Altitude Performance | Diaphragmatic Respiratory Trainer | 16 Resistance Caps

From the brand

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 air 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.
PORTABLE & EASY TO USE ANYWHERE: Lightweight, compact, and travel-ready-no batteries or apps required. Suitable for athletes, travelers, and anyone wanting to level up breathework on the go.
PERFORMANCE ENHANCEMENT FOR ALL: Suitable 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
LATEX-FREE SILICONE CONSTRUCTION: Made from high-quality silicone material that is safe , ensuring durability and comfort during breathing exercises
QUICK DAILY TRAINING ROUTINE: Complete your breathing workout in under four minutes with just 30 repetitions, making it easy to incorporate into your daily routine before sports or work