Dust is a common problem in cars, and it can cause a lot of trouble. It can build up on the inside of the car, and it can cause problems with the air conditioning. There are a few things you can do to prevent dust from building up in your car. First, make sure that you keep your car clean. This means cleaning everything from the inside out, including the air conditioning unit and the windows. Second, make sure that you use a vacuum cleaner to clean all of your carpets and furniture. This will help to remove any dust that has built up on these surfaces. Finally, be sure to keep your car cool down when it’s hot outside. This means keeping your windows open and using an air conditioner if you have one.