Air enters each chamber and raises the balls depending on the air flow inhaled per second
Color-coded balls in each chamber to provide a visual incentive
Chamber to lung capacity reference: 600 ml/sec, 900 ml/sec and 1,200 ml/sec
Each set includes an incentive spirometer, disposable mouth piece and extension tubing
Designed to strengthen respiratory musculature and help restore or maintain lung capacity by encouraging slow and deep breathing