【Improve Your Endurance】: Breathing Exercise for Lungs is helpful to improve your breath, helps you get better endurance, and makes you feel better day by day.
Functional and Effective】: Lung Exerciser Device strengthens your lung capacity and helps you adjust the abdominal muscles, therefore allowing you to exercise core muscles.
【Modifiable Resistances】: Provides you with different resistances levels, Deep Breathing Lung Exerciser features adjustable resistances for you to easily change accordingly.