How can dryer lint cause a fire?

Dryer lint is the number one cause of dryer fires. Lint is extremely flammable, and it gets everywhere. Lint accumulates in your dryer and ducts with everyday use. Lint buildup makes the dryer work harder for each load and the lint can work its way into the heating element, and may ignite.

Periodic cleaning of your dryer vent will allow your dryer to work more efficiently and the reduce the possibility of a dryer fire.