AirPhysio Mucus Clearance Device for Average Lung CapacityDescription The AirPhysio Mucus Clearance Device for Average Lung Capacity is a natural, drug free device designed to help individuals clear mucus from their airways. Using Oscillating Positive Expiratory Pressure (OPEP) therapy, it loosens and mobilises stubborn phlegm, making it easier to cough up. This device helps improve breathing, reduce shortness of breath, and maintain optimal lung hygiene for general respiratory health. Feature AirPhysio OPEP