Our new Spirometer can be used to perform a variety of tests related to air flow and lung volume. The sensor includes a removable flow head (22 mm ID/30 mm OD) for easy cleaning and sterilization, and a differential pressure transducer. The Spirometer is designed to make human respiratory measurements at rest and during moderate activity. The Spirometer package includes 1 sensor handle, 1 flow head, 5 disposable mouthpieces, 1 disposable bacterial filter, and 1 nose clip.