Worked like a charm. I moved into a house and discovered the dryer ran and took way too long to dry clothes. My dryer vent goes up to the roof and a friend went up there while .Appliance FAQ How long can my dryer vent be? The maximum length for a dryer vent varies greatly betweennds ands. The vent material and the type of outside vent cover being used also contribute to the maximum vent length allowed..How to clean and blow out a dryer vent with the LintEater Dryer Vent Cleaning System and electric leaf blower. It worked amazing well!.HY C Company RVG DVG Dryer Bathroom Vent Guard Animal Control Screen. White Powder Coated Gauge Stainless Steel, Predrilled Mounting Holes on. Inside Size inch base x inches high..