Apparatus for conducting pulmonary function testing of patients, namely, whole body plethysmography chambers, pneumotachometers for measuring inspiratory and expiratory air flow rates, respiratory gas analyzers, spirometers, cardiopulmonary performance testing machines in the nature of heart rate monitors capable of displaying information relating to pulmonary function and operational software sold as a unit thereof

cardiopulmonary function testing apparatus, namely, microprocessor based hardware and software for sampling respiratory gases and performing spirometry measurements, diffusing capacity, lung volume and for visually displaying computed information based on the measured values