PURE SILICONE STRUCTURE - Our lung exerciser device is made up of super flexible pure silicone material. It helps in comprehensive respiratory muscle training in a wide range of patients and people. Our compact device is designed for comfortable and convenient use. IMPROVES LUNG CAPACITY - Inhale Respiratory trainer breathing exercise device for lungs improves breathing quality, boosts the stamina of respiratory muscles, and increases diaphragm expansion level. Get professional breathing training with Inhale Respiratory Trainer. HIGH PERFORMANCE FOR - The breathing trainer is essential for various people in the sports discipline. Sports that demand higher energetic performances like athletics running, swimming, gymnastics, martial arts, and other outdoor activities need higher physical activity and greater respiratory capacity. HOW TO PRACTICE BREATHING ACTIVITY - It would help if you practiced breathing exerciser thrice or twice per day. Start breathing with a pattern of seven constant reiterations of inward breath and exhalation resting at two minutes timespan. It will develop your respiratory muscles and improves breathing stamina. ADJUSTABLE RESISTANCE - you can adjust the pressure levels on your breathing lung exerciser. According to your lung capacity results, regulate your flow valve and practice breathing activity. Find the level of resistance that suits your training and adjust it.