Use CalClean for fast and thorough cleaning of evaporator coils, heating coils, window units, air-cooled condensers and permanent air filters. CalClean is a formulation of liquid detergents which contain a perfect balance of surfactants, grease solvents, alkaline cleaners, corrosion inhibitors and water conditioners. Greasy dirt and dust in the air collect on air-conditioner and refrigeration heat exchange units and clog permanent filters. If finned heating or cooling coils are left uncleaned, heat exchange is cut down, compressors have to work much harder, costs go up and often valuable equipment breaks down when it is needed most. Clogged and dirty filters cut down air flow and do not filter air, allowing dirt to contaminate rooms and stain walls around air ducts. Regular cleaning with CalClean protects equipment and helps it to operate at peak efficiency. Special Features: Quickly dissolves the most stubborn soil residues, greases and dirt by chemical action, not just by floating them away. Does not require rinsing where there is sufficient condensate being pulled from the air.