Is a screen allowed on the exhaust vent of a clothes dryer?

A screen is not permitted on the exhaust vent of a clothes dryer because it can pose significant safety hazards and reduce the efficiency of the dryer. The primary function of the exhaust vent is to expel hot, moist air from the dryer to prevent overheating and allow the drying process to be effective. If a screen is installed, it can easily become clogged with lint, which is a highly flammable material. This clogging can lead to restricted airflow, increasing the risk of fire. Additionally, the accumulation of lint can cause the dryer to work harder, leading to inefficiencies and potential breakdowns.

Maintaining a clear, unobstructed path for exhaust is critical for both safety and optimal performance. Building codes and safety standards recommend avoiding any obstructions, such as screens, in dryer vent systems to promote proper ventilation and minimize fire risks. This requirement ensures that the dryer operates efficiently while reducing hazards associated with lint accumulation.