When dryer vents become clogged with lint, the airflow through the system is significantly restricted, forcing the dryer to work harder and longer to dry clothes. This not only reduces energy efficiency and increases utility costs but also creates a dangerous buildup of heat inside the vent. Over time, that trapped heat combined with flammable lint can easily ignite, dramatically increasing the risk of a house fire. Regular vent cleaning helps maintain proper airflow, improves drying performance, extends the life of the dryer, and greatly reduces the likelihood of fire hazards.