The Teleflex Hudson RCI Voldyne 4000 Incentive Spirometer Volumetric Exerciser is a unit engineered for healthcare, lab, and dental use. This model provides precise and reliable measurements for patient monitoring and rehabilitation purposes. With its ability to accurately track and display lung function and capacity, the Voldyne 4000 helps patients improve their respiratory health and functionality. This unit is a valuable tool for medical professionals and patients seeking to enhance breathing exercises and overall well-being.