positive expiratory pressure

Positive expiratory pressure (PEP) is a therapeutic technique that helps improve lung function by maintaining a small amount of air pressure in the airways as you breathe out. This pressure keeps the airways open longer, making it easier to clear mucus and preventing their collapse, especially in conditions like cystic fibrosis or chronic bronchitis. PEP can be delivered through a device, such as a mask or mouthpiece, that creates resistance during exhalation. This method enhances airflow, reduces lung congestion, and promotes better oxygen exchange, supporting respiratory health and easing breathing difficulties.