Monster savings on the industry's top Spirometers from Midmark, Welch Allyn, NDD and more. A spirometer device used to perform a Pulmonary Function Test which measures flow rate, or the volume of air inspired and expired by the lungs over a given period of time. The test is performed by the patient taking a deep breath, then exhaling into the spirometer mouthpiece as hard as they can or as long as they can. Nose clips are sometimes used to prevent air from escaping through the nasal passage.
Related Categories: Spirometer Mouthpieces