If you’re asking this question, then we’re glad you found our page–because you certainly do need a qualified HVAC professional to help you with your filter replacement. The higher the MERV rating of a filter– that is, the Minimum Efficiency Reporting Value– the tighter the weave of the fiber. And the tighter the weave, the smaller particles can be caught.
Not all HVAC filters are created equal. The purpose of this filter that comes standard in your HVAC systems is to protect the system from debris that can get sucked into it and harm its sensitive components. So it sounds like a higher MERV rating would be the best to protect your HVAC system, right?
Well…. not quite. And we’ll get into the reasons why below. First, let’s explain further what MERV ratings are. Read on!