DUAL-FUNCTION BREATHING TRAINER for lung exercise can be used as an inspiratory lung expander or an expiratory breathing exerciser that helps improve your ability to take long, slow and deep breath.
NATURAL, DRUG-FREE breathing treatment addresses an array of respiratory conditions
With 5 expiratory and 5 inspiratory pressure settings, the lung trainer offers tailored volumetric exercise.
2 Different Shape Mouthpieces: choose the one you feel comfortable to exercise