The DWD2 Evaporator System Cleaner fills all areas of the evporator fins providing a cleaner enviornment with better air flow throughout your vehicles cabin.  The thorough cleaning results in more air, colder air, and cleaner air in addition to providing less wear and tear on the compressor motor.  As you can see from the photo below, the effective cleaning will get rid of the odor causing elements that accumulate while heating or cooling your cars ventilation system.