Abstract: A compact hood assembly is provided for use with griddles and other types of cooking range units which generate grease-carrying vapors. A vapor treating section overlies the rear part of a range unit to receive vapors into a vapor treating zone into which water is sprayed with grease-carrying water being collected in a trough, and a water treating section is disposed alongside the range unit and includes a tank receiving water from one side of the trough with the water being pumped from the tank to spraying means of the vapor treating section. Important features relate to the construction, disposition and operation of baffle means which extend downwardly and forwardly toward the trough means and which includes spaced vanes, the baffle means including one or more sections which are removable for cleaning and for access to the interior of the vapor treating section.