How can I maintain the air quality in my Audi A4?

I noticed that the air quality in my Audi A4 is not as good as it used to be. What can I do to maintain it and ensure that the air inside my car is clean and healthy?

One important thing you can do is regularly replace your cabin air filter. This filter helps to keep out dust, pollen, and other pollutants from entering your car's ventilation system. Make sure to follow the recommended replacement schedule for your specific Audi A4 model.