A short, single-speaker recommendation for residential HVAC filter selection: most homes should use MERV 8–13; exceeding MERV 13 risks restricting airflow and overworking the HVAC system. For situations requiring stronger filtration (severe allergies or asthma), the speaker suggests air-cleaning devices or using as high a filter as feasible but warns against going above MERV 13.
That's why, basically, when you get over MERV 13, you get into air cleaning. That's a much better option than getting a better or a higher MERV filter at that point, because once you leave 13, you're really starting to block airflow, which is a problem. So most homes, MERV 8 to 13, that's where you want to be. But if you got pits and allergies or someone, even a home with, in the home with asthma, you know you need to go as high as you can, but don't go off the charge, don't get above MERV 13. That's how your system gets overworked. Your filter gets clogged, it can't break.
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