A high pressure (1200 psi) fogging system was installed on a small poultry house with perimeter air inlets. The inlets are located at the top of the side wall and air is drawn up through an 8" insulated air plenum. The smoke like fog produced by the system is very visable due to the relative low temperatures/high rh when the video was taken. At the beginning of the video the houses exhaust fans were not on. In the middle of the video the fans were turned on and the fog was pulled into the inlet plenum. Towards the end of the video the fans were turned off.