Dynarex Resp-O2 Peak Flow Meter, Adult/Std Range

(Each) Adult Size/Standard Range (50-800 L/min)

Hand-held monitoring device that measures Peak Expiratory Flow (PEF), an indication of how fast a patient can forcefully exhale after a full exhalation. This lightweight, durable peak flow meter is designed to help track daily changes in breathing patterns. Ideal for keeping track of symptoms related to asthma and other chronic respiratory conditions.