A soffit vent is a type of ventilation system installed in the eaves of a building, specifically in the underside of the roof overhang. Its primary purpose is to allow fresh air to enter the attic space, promoting proper airflow and reducing moisture buildup. This helps prevent issues like mold growth and wood rot, which can damage the structure of the home. Soffit vents work in conjunction with other ventilation components, such as ridge vents and gable vents, to create a balanced airflow system. By facilitating the exchange of air, soffit vents contribute to maintaining a comfortable indoor environment and improving energy efficiency in buildings.