The air filter prevents particles like dust from ruining the interior components of your heating and cooling system — but only if you put in the right one. The wrong filter will damage the very system it's supposed to protect. Astonishing, isn't it? If you don't want to have an air filter damage your HVAC system, you'll need to avoid these two types of filters:
Wrong High-Efficiency Filter
MERV, or the Minimum Efficiency Reporting Value, expresses how well a filter traps small airborne particles. A higher MERV number represents greater effectiveness at catching small particles.
To improve indoor air quality, some homeowners buy the most powerful HVAC filter they can get. Getting a good filter isn't about buying the highest-efficiency model you can afford. A filter with a higher MERV rating has a tighter weave on it than one with a lower rating. Consequently, the higher-efficiency filter places more resistance against airflow.
Your HVAC system may not have the capacity to accommodate filters with a MERV rating above 12, which could put you at risk for filter damage. The airflow blockage by a high-efficiency filter increases the air pressure in your HVAC system. That could damage your ductwork and even your furnace or air conditioner.
Take care to not replace your filter with a high-efficiency model that your HVAC system can't handle. If you really want clean air, you could install an air cleaner in your ducts. Air cleaners capture small airborne particles without restricting airflow.
Dirty Filter
An air filter will accumulate excessive dirt if you leave it in the return duct for very long. A clogged filter slows down airflow through your HVAC system. With a clogged filter, the system works harder to keep your house warm or cool, which could accelerate wear and tear and increase the need for HVAC repairs.
Check your air filter every month and replace it if it looks dirty.
Always ensure you have an air filter that does its filtration job without causing filter damage that harms your HVAC system. If you need more information on avoiding air filter damage, contact us at Air Assurance. We offer a variety of heating, cooling, and air-quality products to homeowners in the Broken Arrow area.