The Dynarex Resp-02 Volumetric Incentive Spirometer is a hand-held device designed to help improve patients’ lung function and minimize the risk of post-operative respiratory complications such as lung collapse. The Spirometer features an adjustable indicator that provides visible target guidelines to help motivate and encourage patients to exercise their breathing muscles, increase lung capacity, and deepen inhalation—particularly when recovering from prolonged anesthesia, surgery, or extended bed rest. The device features clear, easy-to-read markings to provide visual feedback to help patients monitor their progress.