Simple Green Foaming Coil Cleaner - Aerosol -20oz Non-caustic, non-flammable liquid creates a clinging foam that penetrates hard-to-reach areas removing dirt and grime. Clean-rinsing on condensate-producing coils, contains no added color or scent, and NSF registered for use in food processing facilities. Cleans coils, fan blades, and reusable air filters Air conditioner coil foaming heavy duty detergent cleaner with low VOC formula