Breathing Exercise Device for Lungs – Lung Exerciser Device with Adjustable Resistance – Increase Lung Capacity, Improve Sleep & Physical Performance
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…