The Whirlpool W10847841 Vent Damper for Range Hood helps control airflow through the ventilation system and prevents unwanted air from entering when the hood is not operating. This replacement damper is installed within the vent path and opens when the range hood operates, allowing cooking fumes, smoke, and airborne grease to move through the exhaust system. When the hood is turned of... https://www.partsmelange.ca/whirlpool-w10847841-hood-vent-damper-for-range