Rami Sommerstein, Christian Rüegg, Philipp Kohler, Guido V. Bloemberg, Stefan P. Kuster, and Hugo Sax
Video. Split-image video showing the effect of heater–cooler unit orientation on smoke dispersal in a cardiac surgery room. The device was switched on and began to ventilate 10 s after the start of the video. Frames on the left show an overview including unit placement. Frames on the right provide a lateral view of the operating field under the laminar airflow. Simultaneously recorded videos in the 2 upper frames show the first scenario, in which the main ventilation exhaust was directed
away from the operating field. Simultaneously recorded videos in the lower 2 frames show the second scenario, in which the main ventilation exhaust was directed toward the operating field. (
Source)