“The best way to clean a car cabin air filter is to replace it altogether. Fortunately, new filters are cheap and easy to install—and a fresh filter should definitely help your car’s air quality!
Consult your car’s manual to determine which cabin air filter your vehicle requires. While you’re looking that up, note where the filter is located in your vehicle. Typically, the air filter housing is right behind the glove box, but this will vary by make and model.
After you buy a new one, here’s how to go about installing a cabin air filter in most cars: