Dryer Duct Booster Saves significant energy - reduces drying times 50% or more. Reduces lint build-up, dust & fire hazards by maintaining proper velocity in duct runs up to 150 equivalent feet. Features the Lint Blitzer™ material handling wheel & 5 year no-clog guarantee. 50 watt motor is not exposed to heat, lint or moisture. Includes 115 VAC cord - automatic operation.