Regular replacement not only helps your heating and cooling system operate at peak efficiency, but it also improves indoor air quality and helps to extend the life of your system. A filter is in place to trap particulates (germs, dust, allergens, pet hair and dander) that can travel into your system. If you don’t change the filter, air flow will go down and the system will not perform well. If you allow the filter to become too dirty it starts to become a source or air pollution itself. NEVER run your system without a filter. Particulate that would have been stopped will gather on the coil and eventually cause it to fail.
By keeping your air cleaner and your system cleaner you will not only extend the life of your system but improve the health of your family.