Another extremely important job that your ac unit filter does is helps to keep dust from collecting on the evaporator coil of your a/c system. It is found inside the air handler, and is one of the 4 major components of any a/c system. The air filter is normally found somewhere just before the evaporator coil.
Any dust that passes through the filter winds up back in your living space, and can be extremely irritating to allergy sufferers, and anyone else who is sensitive to dust. The filter also prevents the evaporator coil from becoming obstructed with dust, and decreasing the efficiency of the equipment.
This evaporator coil is very similar to the radiator in an automobile. Like your auto radiator, it will not have the ability to do its job without appropriate air flow. The reason Im comparing it to a car radiator is because many of us know exactly what a radiator does, however, an evaporator coil works to cool air as it passes through Company web site .
It could take months or even years for dust to accumulate on the fins of the evaporator coil. If your ac unit is serviced routinely, the technician will inspect this and inform you when it needs to be cleaned. If this is not done, it will result in costly repairs.
So the perks of an efficient ac unit filter would not only be cleaner air, but also save you money, due to the fact that the air conditioning unit will work at a higher efficiency.