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For your HVAC system to continue functioning properly, it is important to keep the air that circulates through it clean. This is where your HVAC filter comes into play. The air in your home usually contains a lot of dust, dirt, and other contaminants, which could cause damage to your HVAC system. Contrary to the popular belief that the air is cleaned to protect your health, HVAC filters are primarily designed to protect the blower fan in your HVAC system.
When air is drawn into the HVAC system, it is first warmed or cooled and then pushed through ducts that deliver it to all the rooms in your house. The HVAC filter cleans the air just before it is pulled in through the blower and circulated through the ducts. As the air is forced through the filter, the material, usually pleated cloth or paper, traps any contaminants that are in the air.
