The Lambro 6-In. Plastic Wall Exhaust or Air Intake Vent is ideal for venting or bringing fresh outside air through the wall. This vent is used for bath fan exhaust, range hood exhaust, other general venting applications that require moist air and humidity to exit the home. The wall vent allows for maximum airflow while reducing back flow of exhaust air. The screen is hinged and removable to allow for opening/closing for easy cleaning. The plastic vent has a UV additive to prevent premature fading due to the sun. The vent can be painted to match your home's trim color. The removable damper allows for this exhaust vent to be used as a fresh air intake vent. Fresh air intakes are ideal for allowing clean fresh air into the home especially when gas appliances are present. Please be sure to check local building codes before installation.