AirLife Volumetric Incentive Spirometer with One-Way Valve 4000

Description

AirLife Volumetric Incentive Spirometer with One-Way Valve 4000.
AirLife volumetric incentive spirometers simplify deep breathing therapy with an intuitive design that prompts patients to correctly perform and monitor their own breathing exercises, even without direct supervision. A patient goal indicator can be adjusted and allows patients to monitor their own progress. Dual-sided calibrations clearly identify achieved volumes of up to 4000mL capacity. The flexible tubing lets the patient adjust the mouthpiece for use in various positions, and a mouthpiece holder provides storage when not in use.
This unit is New, no box,from the hospital, full usage instructions are on You Tube.