This academic-quality wet spirometer combines reliability and accuracy with an increased volume to accommodate students with larger lung capacities
Large, easy-to-read scale graduations Includes disposable mouthpieces and a one-way plastic valve for sanitary classroom use Made of lightweight, yet durable, high-density polyethylene (HDPE) plastic and aluminum Determine Five Different Respiratory Volumes: Tidal Volume (TV) Inspiratory Capacity (IC) Inspiratory Reserve Volume (IRV) Expiratory Reserve Volume (ERV) Vital Capacity (VC)