MERV 13 filter HVAC system performance

How to Choose a MERV 13 Filter Without Killing Your CFM

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Infographic illustrating filter selection for optimal CFM. On the left, a skinny, restrictive filter blocks airflow, showing orange turbulence and a 'RESTRICTED FLOW' warning. On the right, a thick MERV 13 filter allows smooth, blue airflow arrows to pass through, marked with an 'OPTIMAL CFM' indicator, visually demonstrating how to choose a MERV 13 filter without killing your CFM.

A MERV 13 filter won’t kill your CFM — but the wrong one will. I’ve seen homeowners upgrade to MERV 13 for better air quality, only to end up with frozen coils and a blower motor working twice as hard. The filter wasn’t the problem. The mismatch was. From what I’ve seen in the field, … Read more