On exhalation, the manometer gauge will rise indicating the backpressure within the airways. Users want to keep a steady exhalation effort, keeping the gauge within the desired pressure range – usually between 10-20 cm H2O, or as prescribed by their healthcare team. The gauge provides immediate feedback to the user, helping develop proper exhalation technique. This can be valuable for new users who may be unsure of how to use the device, as well as more experienced users who may benefit from frequent adjustments in the resistance setting based on disease symptoms.