Air conditioning cleaner foam type and not foam type what is the difference?

The difference is that the foam cleaner will be used from the aluminum fins inside the bulging out of many bubbles to the inside of the dirty things, out, not foam cleaner does not have this function.

Air conditioning foam cleaner strong penetration, cleaning surface, can clean the air conditioning evaporator and ventilation ducts, strengthen the cooling effect, effective maintenance of the air conditioning system, to extend the service life of the air conditioning system.

Non-foam type air conditioning cleaner can not achieve this effect, or the effect on the less obvious.