What is the difference between a low-range and full-range peak flow meter?

A low-range peak flow meter is designed to measure lower peak expiratory flow rates, typically suited for individuals with mild respiratory issues or children. In contrast, a full-range peak flow meter can measure a broader spectrum of flow rates, making it suitable for a wider range of patients, including those with more severe respiratory conditions. The choice between the two depends on the patient's specific needs and the severity of their condition.