Dryer vent cleaning is the number one way to prevent over 17,000 dyer fires which occur each year. Failure to complete routine maintenance and inspections is a leading contributor in dryer fires across the nation. Improper dryer vent installation can also lead to problems.
Dryer vents clogged with dust, fiber, and lint cause nearly 30% of all dryer fires, making it a top contributor to dryer fires. To reduce this risk, clean lint screens and traps before and after every use. Carefully wash lint screens with soap and water at least once a month to remove residue buildup from dryer sheets. Also, be sure your dryer vent material and installation are up to code according to city, state, and manufacturer recommendations. Replace foil or plastic vents with vent made of solid metal material. Check the path of the dryer vent. Be sure it is as straight and short as possible. This helps to promote maximum airflow and prevent buildup at the elbows of vent systems. Check out the outside hood of the venting system. Make sure it is free from blockages, freezing, or other damages. In addition to these actions, have the vent system and your dryer professionally inspected and cleaned seasonally.
Resource: Vent Hood Cleaners