A standard air filter is positioned after the return air duct, and directly before your furnace or air handler. Standard filters are very thin, and only stop major particles and dust from entering the system. Normal filters are also very dense, which is how they stop dust by trapping it in a porous filter. The fewer the pores, the more dust that is trapped, but this also hurts air flow as well which is called "pressure drop". An Advanced air cleaner can filter more particles out of the air, protecting your family more, and allowing your HVAC system to run even more efficiently.
The SEER, HSPF and AFUE rating of your air conditioner, furnace and heat pump are also dependent on your system staying clean. An advanced air cleaner helps keep your indoor components (furnace, coil) clean so your heating and air conditioning system can operate the way it was designed to perform. The effectiveness of an air cleaner is measured with a Minimum Efficiency Reporting Value (MERV) rating. MERV ratings on residential filters typically max out at 16 as the highest.
An electronic air cleaner is just one of four primary products design to increase the quality of air in your home. To learn more about indoor air quality products, visit our indoor air quality page.