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Respiration meters

Measuring exhalation strength is important for recognizing and treating obstructive (constricted) airway diseases. The narrowing of the airways makes breathing difficult and can even lead to breathlessness. Obstructive airway diseases include COPD (Chronic Obstructive Pulmonary Disease), emphysema, chronic bronchitis, bronchiectasis (narrowing of the bronchial tubes) and asthma.

One measure of airway width is the maximum speed (peak flow) at which a person can exhale air. The result of a peak flow measurement is given in liters per minute.

Regular peak flow measurements can detect even small changes in the condition of the lungs. This makes it easier to assess the effect of the medication.