Vmax ™ Encore system Autobox ™ cabin Plethysmography Key features include: • Fast and accurate—all lung volume, resistance and spirometry tests can be performed in as little as 60 seconds • Open cabins create less stressful patient environment • Two cabin sizes—standard and 1,400L wide (largest cabin on the market) • All tests can be performed in the box, including gas dilution, so “trapped gas” (difference between body box lung volume and gas dilution lung volume) can be quantified • Both VTG and RAW can be obtained via the conventional panting technique or quiet breathing technique • Transmural (through the wall) patient breathing allows for compression-free FVL measurements that accurately determine patient effort • Equipped with real-time BTPS mass flow sensor that automatically corrects for changing environmental conditions The Vmax ™ Encore system Autobox ™ cabin combines advanced pressure- compensated flow technology to provide fast and precise measurements of thoracic gas volumes, including communicating and non-communicating lung volumes. The system also helps avoid the possibility of underestimating lung volumes, which is common when testing some obstructed patients with gas dilution techniques. Airway resistance/conductance measurements can be referenced to a specific lung volume, which is useful in determining the patient’s response to bronchodilator or bronchoprovocation tests. Lung compression can be measured during the flow volume loop to determine patient effort. Lung compression is always positively correlated with patient effort.