Allison Bailes Discusses How to Retrofit Forced Air HVAC With High Merv Filtration
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Here is an excellent article from author Allison Bailes which I found in The Journal of Light Construction (April 2021 edition) about how to retrofit forced-air HVAC with higher-Merv filtration. Apparently it’s not just a question of switching out a cheap filter for a better one, and the higher resistance from the Merv filter may require an HVAC system redesign.
https://www.jlconline.com/how-to/hvac/retrofitting-forced-air-hvac-with-high-merv-filtration_o
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