The AirPhysio is an easy-to-use, award-winning device that can help clear lungs of excess mucus and restore lung capacity. Ideal for anyone with asthma, COPD, bronchiectasis, and other lung challenges - even chest colds and flu. Simply take a deep breath, then exhale through the device. AirPhysio uses all-natural Oscillating Positive Expiratory Pressure to create vibration, helping to loosen mucus and make breathing easier. HOW DOES IT WORK? AirPhysio uses an all-natural technology called Oscillating Positive Expiratory Pressure (OPEP). This positive pressure is created when you exhale through the device. This results in an expansion and strengthening of the lungs while helping to loosen mucus trapped to the airway walls. Mucus can then be coughed out or swallowed naturally.