There’s a fairly common misconception when it comes to air filters—at least, air filters that come standard with air conditioners and forced-air heaters. Homeowners often assume they’re in place to protect their indoor air quality. In reality, they’re there to protect the interior components of the HVAC system from dirt, dust, and other debris that can get inside and damage the components.
In other words, your air conditioner’s air filter is there to keep the actual air conditioner clean, not to keep the air clean. Read on to learn more! (more…)