Cabin air filters are typically made of paper, foam, or a combination of materials. Some cabin air filters are also treated with chemicals that can help to remove certain types of pollutants, such as bacteria and viruses.
It is important to change your cabin air filter regularly according to the manufacturer's recommendations. A dirty cabin air filter can restrict airflow and reduce the efficiency of your vehicle's heating and cooling system. It can also lead to the build-up of bacteria and mold, which can cause health problems.
Changing a cabin air filter is a relatively simple task that can be done in just a few minutes. Most vehicles have instructions for how to change the cabin air filter in the owner's manual. If you are not comfortable changing the cabin air filter yourself, you can have it done by a professional mechanic.