Where is the cabin air filter on a 2000 Mazda Protege?

The cabin air filter on a 2000 Mazda Protege is located behind the glove compartment. To access it, you'll need to remove the glove compartment by unscrewing or unclipping it, then you can find the filter housing. Once you remove the cover, you can slide out the old filter and replace it with a new one. Be sure to check the orientation of the filter for correct installation.