Air filters have a relatively simple function, but they can’t do their job effectively if they are not clean. Many different problems can arise from a dirty air filter, such as:

·Dust and other airborne particulates build up on the mechanical components (i.e. fan blade and motor).

·Allergens and dirt accumulate on the duct work walls.

·Dirt can block or clog the HVAC coils.

·The same coils can freeze due to lack of air flow.

·The HVAC system cannot perform efficiently and increase your monthly energy bills.

·A filter that doesn’t fit right allows dirt to bypass the filter.