Portable Lung Capacity Abdominal Bite Breathing Trainer，Breathing Exercise Device for Lungs,Improve Sleep

Highlights *High quality healthy silicone structure - Swimming and running lung capacity pure silicone material. It facilitates comprehensive respiratory muscle training suitable for the intended population. The compact device is designed for comfort. *Improve lung volume - Inhaling Breathing Trainer Breathing Exercise device Lung improves breathing quality, increases the endurance of breathing muscles, and increases diaphragm dilation levels, which helps in swimming and running *High Performance sports - Sports that require higher energy performance, such as track and field running, swimming, gymnastics, martial arts, and other outdoor activities require higher physical activity and greater breathing capacity. *Practice breathing activities - It helps if you practice breathing exercises three to two times a day. Begin breathing in a pattern of seven repeated inward and outward breaths, resting every two minutes. *Adjustable resistance - you can adjust the pressure level of your breathing lung exerciser. Depending on your lung capacity and results, adjust your flow valve and practice breathing activities. Find the right resistance level for your training.