Genuine OEM Audi Cabin Air Filter, part number 8KD819441. This essential filter is designed to purify the air that enters the vehicle's passenger compartment, trapping dust, pollen, and other airborne particles. It is typically located behind the dashboard or glove compartment. Weighing approximately 0.222 kg, this filter ensures optimal air quality and HVAC system performance. Using a genuine OEM cabin air filter guarantees the correct filtration media, precise dimensions for a tight seal, and proper airflow, which are crucial for effective air purification and preventing contaminants from entering the HVAC system.