Do mucus clearance devices actually work? In this video I explain the science behind Oscillatory Positive Expiratory Pressure (OPEP) devices such as airphysio how they may help loosen mucus, and the current research evidence behind their use in conditions including COPD and bronchiectasis. I also demonstrate: • How OPEP AirPhysio devices work • The Correct breathing technique • Common mistakes • Huff coughing technique for mucus clearance OPEP devices create positive expiratory pressure and oscillation during breathing out, which may help keep airways open and mobilise mucus from the lungs. This video is for educational purposes only and is not medical advice. Always seek professional guidance if you have breathing difficulties or ongoing respiratory symptoms. COPD systematic review and meta-analysis: kclpure.kcl.ac.uk/portal/en/publications/use-of-oscillatory-positive-expiratory-pressure-opep-devices-to-a/?utm_source=chatgpt.com Bronchiectasis OPEP study: pubme...