Breathe Easy, Live Strong! 💪 Bite mouthpiece for effortless exercise. Perfect for all ages and lung conditions. Risk-free experience with hassle-free returns. Unlock your lung potential with targeted training. 6 customizable levels for personalized progress. 2 mouthpieces For all ages 6 resistance levels The Sonmol Breathing Exercise Device is a versatile lung trainer designed for individuals of all ages, featuring 6 adjustable resistance levels for both inhalation and exhalation. With two mouthpiece options, it allows for hands-free training, making it ideal for athletes and those with respiratory conditions. Enjoy a satisfaction guarantee for a risk-free investment in your lung health.