Flutter Valve, Muscle Exercise Device, Included Exhale Model, Suit for Home Use

Breathing Trainer, Expiratory Muscle Trainer Device - Lung Strengthener, Mucus Removal and Lung Exerciser Device, Breathing Exercise Device for Lungs

THE BREATHER │ Natural Breathing Exerciser Trainer For Drug-Free Respiratory Therapy │ Breathe Easier with Stronger Lungs │ Guided Mobile Training App Included

Inhale Respiratory Trainer | Compact Lung Exercise Device with High Grade Silicone | Carrying Case Included | Breath Trainer with Adjustable Resistance | Portable & Easy to Clean