The Microlife PF100 Digital Peak Flow & FEV1 Meter is a medical device used for measuring lung function. It is designed for healthcare, laboratory, and dental settings, as well as for personal use by individuals with respiratory conditions. The device is manufactured by Microlife, a trusted brand in the healthcare industry.

This peak flow meter allows for easy and accurate measurement of peak expiratory flow rate (PEFR), also known as peak flow, which is a key indicator of lung function. It also includes a FEV1 meter for measuring forced expiratory volume in one second (FEV1), another important measurement for assessing respiratory health. The device is compact, portable, and user-friendly, making it an ideal tool for monitoring lung function at home or in clinical settings.