AirFlex Pro™ Breathing Trainer

Train your lungs. Run further. Breathe better.

The AirFlex Pro™ uses resistance-based airflow training to strengthen your respiratory muscles — the ones that determine how hard you can push before you gas out. Just 5 minutes a day builds measurable improvements in stamina, breath control, and recovery speed.

Used by runners, cyclists, boxers, and everyday gym-goers who want to stop being limited by their lungs.

How it works

The AirFlex Pro™ restricts airflow on both inhale and exhale, forcing your diaphragm and intercostal muscles to work harder with every breath. Over time, this builds respiratory strength the same way resistance training builds muscle — progressively, measurably, and without the gym.

• Inhale resistance — strengthens inspiratory muscles for deeper, more powerful breaths
• Exhale resistance — improves breath control and CO₂ tolerance
• Adjustable dial — 6 resistance levels to match your current fitness and progress over time

What's in the box

• AirFlex Pro™ breathing trainer (Black or White)
• Medical-grade silicone mouthpiece
• Nose clip
• Carry pouch
• Quick-start training guide

Product specifications

• Material: ABS body with medical-grade silicone mouthpiece
• Resistance levels: 6 adjustable settings
• Dimensions: 9cm × 4cm × 4cm
• Weight: 68g
• Suitable for: Daily training use, suitable for ages 16+