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O2Trainer Breathing Muscle Trainer by Bas Rutten

Bas Rutten ★ 3.7/5 · ItemOracle Score Mid-Range

$60 USD
Price subject to change
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Bas Rutten O2Trainer: Breathing Muscle Training Device Lung Power & Endurance Tool for Athletes, Singers & High-Altitude Performance Diaphragmatic Respiratory Trainer 16 Resistance Caps Green

Breathing muscle trainer to strengthen diaphragm and intercostals for improved lung capacity and endurance. Includes 16 interchangeable intake caps for adjustable resistance; praised for effectiveness and ease of use by users

Highlights

  • 16 adjustable resistance caps
  • diaphragm and intercostal muscle training
  • endorsed by Bas Rutten and used for performance

Pros

  • adjustable air resistance with 16 caps
  • builds diaphragm and breathing muscle strength
  • user-reported improved breathing capacity and endurance
  • familiar brand with UFC athlete basis
  • compact, portable training device

Cons

  • mixed reviews on comfort and value for money
  • some users find it uncomfortable

Best For

  • athletic training
  • high-altitude performance
  • singers and voice trainers
  • daily breathing workouts
  • endurance improvement for workouts
  • nasal breathing enhancement

Features

  • Designed by UFC legend Bas Rutten for diaphragmatic breathing training
  • 16 interchangeable intake caps enable progressive air resistance
  • Strengthens breathing muscles for expanded lung capacity and endurance
  • Compact, portable, and travel-ready—no batteries or apps required

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