FAIRBIZPS 3 Balls Incentive Spirometer Breathing Exerciser for Deep Breathing Lung Exercise (Pack of 1)

FAIRBIZPS breathing exerciser device is composed of a base and of a central part divided into three chambers containing three small spheres different in size and color. By means of inspiration, the three spheres rise proportionately to the inspiration exerted. The ability to see the movement of the spheres allows for quantifying the effort that has been made and establishing the efficiency of the exercise prescribed by the physician. For the exhalation, we can also turn upside-down the device. HOW IT WORKS If you are only able to raise the red ball for 1 second, then it means that the maximum amount of air that can be drawn into your lungs is 600 ML/cc. If you are able to raise both red & yellow balls for 1 second, then it means that the maximum amount of air that can be drawn into your lungs is 900 ML/cc. If you are able to raise all the 3 balls for 1 second, then it means that the maximum amount of air that can be drawn into your lungs is 1200 ML/cc. This exerciser is meant for INHALATION (breathe in) exercise and measurement. It will work upside down if you Exhale. Made of good quality materials that last longer.