The LIQUI MOLY Cleaner for Air Conditioning Systems rids the A/C System of bacteria, fungi and sickness causing germs without disassembly. It forms a protective film on the evaporator and provides for fresh, clean air with long-lasting effect.This specially designed spray nozzle makes it possible to treat the entire surface of the evaporator. Compressed air is used to spray the air conditioning system cleaner into the evaporator fins via a 360° nozzle. Unlike other products, the evaporator is not scented but is thoroughly cleaned and freed of deposits between the fins.