The Quark CPET (Cardio Pulmonary Exercise Test) is the ideal solution for the assessment of physiological response to exercise. Its high quality components and super-fast analyzers assure unsurpassed accuracy, reliability and real breath-by-breath analysis of pulmonary gas exchange, even during high intensity exercise. The easy-to-use and intuitive software guides the user through calibration and test execution. The Quark CPET can be integrated with an optional 7-liter physical mixing chamber suitable for extremely high and low ventilation ranges