Abstract: A portable exhaust fan is disclosed. The portable exhaust fan has a hood, two adjustable length hood end elements, four adjustable legs, a grease trap tray connected to the hood, a fan enclosure connected to the grease trap tray with a motorized fan mounted within the enclosure, a charcoal filter element connected to the fan enclosure, and a top grill connected to the charcoal filter element. The portable exhaust fan has particular utility in connection with providing suitable air cleaning and air exhaust for cooking appliances such as cooktops, ranges, electric griddles, fry pans, and deep fryers in different locations.