What effect does lint blocking the clothes dryer duct have on its operation?

When lint accumulates and blocks the clothes dryer duct, it significantly reduces air flow. This obstruction hampers the dryer’s ability to expel hot, moist air, which can lead to a buildup of humidity inside the dryer. As a result, the dryer has to work harder and for a longer duration to effectively remove moisture from the clothes. This not only increases drying times but can also lead to overheating, potentially causing damage to the dryer and creating a fire hazard. Proper air flow is essential for efficient operation, making it clear that a reduction in air flow due to lint blockage adversely affects how well the dryer functions.