Features: 1KEEP LUNGS HEALTHY: You use deep breathing exerciser to be breathing exercises, and regular breathing exercises strengthen the respiratory system. 2HELP BREATHE CORRECTLY: Deep breathing can open the respiratory tract, and the inhaled gas can clean the respiratory tract. Helps prevent mucus accumulation, asthma, pneumonia and other diseases. 3ANTI AGING: The more breathing exercises are carried out correctly, the higher the efficiency of the lungs to deliver oxygen to the whole body, helping you better resist aging and diseases. 4FIGHT AGAINST STRESS: When you use deep breathing trainer to take a deep breath, your mind will be clear and get rid of the stress and anxiety caused by daily work and activities. 5PORTABLE: Deep breathing exercise device has a small size and it is portable, can be carried around in a bag, which can be used at home or after surgery. Package included: 1 x Deep Breathing Exerciser 1 x Tube 1 x Instruction