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Mar 5, 2024 · What is a MERV rating? ; 8. 1.0-3.0 greater than or equal to 20% 3.0-10.0 greater than or equal to 70% ; 9, 1.0-3.0 greater than or equal to 35%
MERV 11 is made of a thicker filter material than MERV 8. This means that more energy will be consumed to allow enough air to pass through. This increase in ...