This Is Your Brain On Clogged Dryer Vents
https://www.scribd.com/document/426759435/25869Will-Indoor-Dryer-Vent-Ever-Rule-The-World
But it is not usually attainable to clear up all this mess by the owners. Folks want to purchase productive items but hesitate on set up. This is not the only problem house owner encounter with roof vents.