Medically reviewed by Daniel More, MD A peak flow meter is used to measure your peak expiratory flow rate (PEFR). PEFR describes how quickly your lungs expel air during a forceful exhalation after you ...

The PF9940 PeakAir® Peak Flow Meter is an integral component of asthma management programs. It is suitable for patients of all ages, the PeakAir assists in monitoring the patient’s maximum ...

Further information The panel agreed the technology is not appropriate to be selected for guidance development as there is insufficient evidence. For further information on how we select topics for ...