An obstructed or clogged dryer vent can cause a buildup of heat in the dryer, which can damage or ruin clothing. That favorite go-to-work-from-home outfit could last through many more Zoom meetings if your dryer is working properly. If you have to run your clothing through multiple drying cycles to compensate for poor dryer performance caused by blockages in the dryer vent line, your clothes will suffer the consequences. Clothing fibers can break apart or fray more quickly than if heat was properly expelled from the dryer and clothes were dried in the minimum or normal amount of time.