1pc Deep Breathing Exercise Respiratory Exercise Respiratory Training

Product Description Child-Adult 300-500ml This is an exercise tool for daily use Recommended for use in the office, Recommended for use at home, Recommended for anyone with free time If you want to improve your breathing quality, you can try buying it If you want to improve your lung discomfort after exercise, you can use it，do daily respiratory Exercise If you want to increase the activity of your chest muscles,you can try using it It does not have therapeutic functions, but using it can improve breathing quality People with health problems are advised to take it step by step and act according to their health situation. Or use before consulting a doctor.

Child-Adult 3000-5000ml adjustable; Child 3000ml; Adult 5000ml Use Fentry, inhalation only, easy to clean. Fentry improve my breathing quality. Use FENTRY to do respiratory exercise every day. Breathing exercise make me happy and energetic Fentry tool is an exercise tool and does not have therapeutic functions.