The Microlife Pf-100 is a reliable personal device designed for monitoring respiratory function, specifically focusing on measuring Peak Expiratory Flow (PEF) and Forced Expiratory Volume in 1 second (FEV1). This meter is an essential tool for individuals managing asthma or chronic obstructive pulmonary disease (COPD), allowing for consistent, at-home tracking of airflow limitation. Regular monitoring helps users and healthcare providers adjust treatment plans effectively to prevent exacerbations and maintain optimal lung health. It features high accuracy and a user-friendly design, ensuring that measurements are quick and easy to perform, integrating seamlessly into daily health routines.