Peak Expiratory Flow Rate (PEFR)

Peak Expiratory Flow Rate (PEFR) is a measurement of how fast a person can forcefully exhale air from their lungs. It helps assess the airway's openness and can indicate the presence or severity of respiratory conditions like asthma. Using a device called a peak flow meter, individuals can monitor their breathing health daily. A higher PEFR value suggests clear airways, while a lower value may signal narrowing or obstruction. Regular monitoring can assist in managing lung health and noticing early signs of health changes.