Used for various Audi models such as the A4, A5, Q5, S4, S5, SQ5, RS5 and Porsche Macan. The Purolator Cabin Air Filter C35845 is a high-quality replacement filter designed for vehicles that purifies the air circulated within the cabin. With a focus on providing clean and fresh air for passengers, this filter helps to remove contaminants and allergens, ensuring a comfortable and healthy environment while driving. This product is manufactured by Purolator, a trusted brand known for producing reliable automotive filters, making it a dependable choice for maintaining the air quality in your vehicle.