"Lung Breathing Aid - A natural handheld device that uses positive exhalation. Its stainless steel ball bearings and internal diaphragm create vibrations and pressure that loosen mucus in the airways and throat. The mucus can then be expelled by coughing.Handheld Device Air Physical Lung Expander - Used to treat and prevent the following medical conditions: Asthma, Atelectasis, Bronchiectasis, Emphysema and Chronic Bronchitis and many other respiratory conditions.Easy to Use - Our mucus removal device is simple, quick and easy to use to reduce mucus buildup. You can feel it working within seconds and it is small enough to carry with you. Most people only need 5-10 minutes, 1-2 times a day.Lung Universal Breathing Aid - Comes with two stainless steel ball bearings so that you can adjust the minimum or maximum positive pressure based on lung capacity, age and current health.Note: For people with arthritis in their hands, the flutter device may be difficult to remove with the child safety lock unlocked - alternatively, the device can be cleaned by rinsing it with hot water. Also, some people find that it takes a few days to see or feel the effects, while others may be helped more quickly - continue to use until you get the right method and results."