A blower for use in a kitchen ventilation system includes a set of blades driven by a motor for moving air containing cooking byproducts from a surrounding area and separating out cooking byproducts. A housing at least partially encompasses the set of blades and captures the separated cooking byproducts. A tray engages with the housing, which includes a reservoir for accumulating the captured cooking byproducts, wherein the tray is separable from the housing to allow discarding of the accumulated cooking byproducts.