21.5x23x2 MERV 13 filter

Will a MERV 13 21.5x23x2 Filter Reduce Airflow in My Furnace?

by
The image's left panel shows a high-efficiency MERV 13 filter being installed into a furnace. The right panel uses a technical cutaway view to visually confirm that airflow remains optimized and protected, answering the question posed in the header.

It’s a question we hear all the time at AirVeil HVAC, and it usually comes right after a homeowner finally tracks down a hard-to-find 21.5x23x2 pleated HVAC air filter. After years of servicing HVAC systems and testing thousands of filter installations, we can tell you this: a properly fitted MERV 13 filter does not automatically … Read more