Suning Lungs Breathing Exercise Device Lung Exerciser Device With Adjustable Resistance Increase Lung Capacity, Improve Sleep & Physical Perfor...

INCREASES LUNG CAPACITY - The breathing trainer reduces the amount of air flow to the lungs, forcing you to take more focused and deeper breaths, as a result increasing your lung capacity.IMPROVES OVERALL PERFORMANCE - The breathing exerciser boosts your stamina and improves your body conditions in daily activities. Extremely good for athletes or anyone who requires higher performance.ENDLESS BENEFITS - Great for anyone who has poor physical condition, smoking or under lots of anxiety & stress. It helps you relaxing and getting a better sleep, feel refreshed the next day.ADJUSTABLE RESISTANCE LEVEL - You can easily adjust the resistance valve to select your desired level of breathing and resistance. POCKET-SIZED DESIGN - Lightweight and designed with soft silicone rubber mouth piece with grip surface. Comes with a portable container, take it to anywhere you go.