Deep Breathing Lung Exercise Device Breath Measurement Easy to Use Portable Device It helps to breathe properly, trains taking deep breaths, helps to open and cleanse the airways, helps prevent upper respiratory tract diseases such as mucus buildup, asthma, etc. The more breathing exercises performed properly, the more efficiently the lungs deliver oxygen to the whole body, not only strengthen the respiratory system, but also prevent the lungs. Easy to use. You can measure and record maximum inspiratory effort. It also helps in the fight against stress and. When you take a deep breath, you will also clear your mind and get rid of the stress caused by everyday work and activities. You can spend the day actively and positively. Lightweight to carry and clean, easy to put in bag and carry with you. You can use it at home. A simple exercise can keep your lungs healthy. Specification: Material: Size Chart: 13,3 cm x 13,8 cm x 6,9 cm/5,24 inch x 5,43 inch x 2,72 inch The package includes: 1 breathing exercise device Note: