Respiratory exerciser is an innovative system to exercise respiration through inspiration. This device is composed of a base and of a central part divided into three chambers containing three small spheres different in size and colour. By means of inspiration the three spheres rise proportionately to the inspiration exerted. The ability to see the movement of the spheres allows to quantify the effort that has been made and to establish the efficiency of the exercise prescribed by the physician. For the exhalation we can also turn upside-down the device. Sustained deep breathing has been shown to relieve anxiety and fight stress, strengthens respiratory system & helps reduce shortness of breath.