ACDelco Gold (Professional) Cabin Air Filters are a high quality alternative to Original Equipment (OE) parts. They help keep pollen and other materials from reaching the inside of the vehicle through the fresh air inlet. High quality filtration media helps trap most airborne allergens and particles before they reach the vehicles ventilation system; recirculating air or air entering the vehicle through means other than the fresh air inlet is not filtered. ACDelco Gold (Professional) parts are manufactured to meet your expectations for fit, form, and function, making them a smart choice for General Motors vehicles, as well as most makes and models, including special applications. These high-quality parts are backed by General Motors. Some ACDelco Gold parts may have formerly appeared as ACDelco Professional.