Paramount Ball Exerciser Respiratory Spirometer is a breathing exerciser using the technique of Sustaining Maximum Inspiration. It is used to improve the lung performance, oxygen concentration and muscular tone of thoracic area. Respirometer is composed of Base and central part divided into three chambers containing three small spheres. Three spheres rise proportionately to the inspiration exerted by the user. Innovative design can be dis-assembled into parts for cleaning and disinfection.