Breathe-o Meter

Breathe-o Meter is a small, portable, easy-to-use device that measures your peak expiratory flow rate which has been calibrated using the European Union Scale. The Breathe-o Meter measures the speed at which you are blowing out air. This measurement is called PEFR, the rate at which you exhale, and this can be tracked over time to manage your asthma better.