What is the primary benefit of using a peak flow meter?

Using a peak flow meter primarily provides an assessment of lung function by measuring the maximum speed of expiration after taking a deep breath. This measurement is crucial for individuals with asthma, as it allows them to monitor their breathing capacity and detect any changes that may indicate worsening asthma control. When lung function decreases, as reflected by lower peak flow values, it may signal the need for adjustments in medication or other management strategies to prevent exacerbations. Regular use of a peak flow meter empowers patients to track their condition actively and recognize patterns that could predict potential asthma attacks, thereby enhancing overall asthma management.