Nearly every air conditioning and furnace unit includes an air filter used to remove particles from the air that can damage the system and pollute the air in the home. The filter both protects the fans and coils of your furnace from dust build-up that can reduce its efficiency and significantly improves the quality of the household air by removing airborne contaminants.
Indoor air quality is often worse than outdoor air, even in the largest and most industrial cities. And, since the average person spends 90% of their time indoors, health risks from air contamination are significantly increased when indoors.
Replacing your air filter regularly and using the most efficient filter possible are two of the easiest and least expensive ways to reduce the risk of air contamination in your home and improve your health. As an added benefit, regular filter replacement also prolongs the life of your furnace, saving you money over time.