Another job that is very important for your air conditioner filter to accomplish is keeping dust from collecting around your coil. This part is located inside of the air handler. It is an extremely vital part of the basic four main components of an AC system. In most cases, the filter is somewhere close to the evaporator coil.
If dust passes out of the filter ends right back into your living space, it can be very aggravating to people that suffer from allergies or anyone who is just sensitive to dust.
The filter stops the evaporator coil from being clogged by dust, and it makes the equipment more efficient.
The coil is a lot like a car radiator. It can not work correctly if there is not a proper airflow. I am comparing the coil to a radiator because most people know what a radiator does. A coil is able to cool air as it goes through.
Dust can accumulate in coil fins. It can end up forming a small layer of dust on top of the fins.
If you do regular maintenance on your system, you will be able to tell you when it is time for this to be cleaned. If this is not done, it could end up costing you a lot of money in repairs.
There are many different benefits to having an efficient filter like cleaner air and the ability to save more money since the unit will work at a much better efficiency.