Breathe stronger. Perform longer.
Train your lungs like you train your muscles with the RepX AirMax Trainer — a compact, high-performance lung training kit designed to improve cardio capacity, endurance, and breath control across any sport or activity. Whether you’re a lifter, runner, cyclist, or combat athlete, stronger lungs mean better output, faster recovery, and next-level stamina.
Key Features:
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Adjustable Resistance Levels
Dial in your training intensity with adjustable airflow — from beginner to elite.
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High-Grade Silicone Build
Comfortable, hygienic, and ultra-durable — designed for repeated use and easy cleaning.
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Ergonomic Fit
Snug mouthpiece made for long sessions without discomfort.
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Portable with Carry Case
Take it anywhere — gym, track, or travel — with the included compact storage case.
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Multiple Colour Options
Match your gear with bold colour choices that fit your style.
Why It Works:
The RepX AirMax Trainer helps expand lung capacity, increase oxygen efficiency, and build stronger respiratory muscles. This means:
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More reps
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Longer runs
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Faster recovery
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Less fatigue in high-intensity training
Used by elite athletes, MMA fighters, and endurance pros — it’s a secret weapon for next-level conditioning.

Perfect for:
Endurance training · Cardio · HIIT · Combat sports · CrossFit · Athletes of all levels
Train your lungs. Unlock your engine.
RepX AirMax Trainer — power every breath.

