Rossmax – PF120A Peak Flow Meter with Color–coded indicators
The peak expiratory flow (PEF), also called peak expiratory flow rate (PEFR) is a person’s maximum speed of expiration, as measured with a peak flow meter, a small, hand-held device used to monitor a person’s ability to breathe out air. The peak flow meter is a scientifically designed portable device to measure lung capacity or airflow in the lungs. It offers an easy and quick way to measure peak expiratory flow which helps you to monitor and control your asthma conditions as well as lung function. The product is durable and made from skin-friendly plastic.