(Bayer) The Advantage Household Fogger kills adult and pre-adult fleas, including flea eggs, for 7 months. Each 2 oz. fogger canister will treat a room up to 16' x 16' with an 8' ceiling, or 2000 cubic feet. Do not use in small, enclosed spaces or rooms 5' x 5' or smaller. Upon use, vacate premises for at least 2 hours.