Yes

The diagram shows where the air filter is actually located and depicts where it stops working. The truth is, there is nothing between you and the air you breathe from the evaporator. While a cabin air filter works well on eliminating some of the dirt, debris, and road grime, it does nothing to actually clean that musty odor. The cabin air filter does not protect you from the contaminated air before entering your car’s cabin, as shown on the diagram above.

The evaporator is a damp enclosed box with the humidity of a swamp like atmosphere. It is a perfect breeding ground for mold, mildew and bacteria.

Have your vehicles evaporator professionally cleaned by Blue Trooper Clean Air.