I suppose precisely how important it is to have your air filter changed on a biweekly basis. It doesn’t matter if it is the air conditioning or the central oil furnace, having the air filter changed officially and regularly is an important piece of your Heating, Ventilation, & A/C system. The air filter component is important to the airflow of your Heating, Ventilation, & A/C system every day. Without correct airflow, your heating & air conditioning system are unable to job respectfully. Without obtaining the correct amount of airflow, the heating or air conditioning is totally unable to flow through the HVAC duct & get to the desperately required areas of the house. Without correct airflow, theEntire heating & air conditioning system needs to job extra strenuous which makes the components job much harder & it puts more pressure on them. In the long run, it turns out that you end up using more energy to keep the stupid Heating, Ventilation, & A/C method certainly working at any level. You are also causing the lifespan of your current heating or air conditioning to be shortened & you are Dangerously flirting with having more complications which means more overpriced repairs. I know because I talked to the Heating, Ventilation, & A/C company about my own terrible air filter malfunctioning. That is when I personally heard all about the airflow & need for cleaning the HVAC duct.