Quote:
Originally Posted by retiredguy123
I have been using MERV 11 filters for about 2 years. All filters will restrict air flow to some extent, but I get plenty of air flow, heating and cooling, and better filtration. And the system runs quieter. Your AC provider will only give you a wild educated guess. You just need to replace the filters more often, but they definitely perform better than MERV 8 filters.
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When we moved into our newly built home and had our HVAC orientation, the technician noticed our original filter was a little damaged. He replaced it with a MERV 11. That was good enough of an endorsement for me. Been using them ever since also.