1. Engine Air Filter: It is located inside the air filter housing, which is typically on the top of the engine. To access it, open the hood and loosen the clamp that holds the air filter housing in place.
2. Cabin Air Filter: Some Forester models come equipped with a cabin air filter which usually behind the glove compartment. To access the cabin air filter, it's recommended to refer to the owner's manual for your specific vehicle for detailed instructions.