How can I improve the air quality in my Audi A2?

I've noticed that my Audi A2's air quality isn't as good as other cars I've owned. I'm not a car expert, so I'm not sure what I can do to improve it. Any advice would be greatly appreciated!

Have you checked your cabin air filters? They may be clogged and in need of replacement. This can greatly improve air quality in your car.

It could be due to a leak in your air ducts. This can allow pollutants from outside to enter your car's air system. Have a mechanic inspect and repair any leaks.