Quark PFT, Pulmonary Function Testing, has been designed to meet the needs of any physician that may need a complete PFT system or a basic configuration. PFT features Spirometry, Lung Volumes, Lung Diffusing Capacity, Respiratory Mechanics (P0.1, MIP-MEP), Airway Resistance (Rocc/Rint), Forced Oscillation Technique, Integrated Dosimeter, and Cardio Pulmonary Exercise Testing & Nutritional Assessment.