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How to Pick the Right 10x20x1 Allergy Air Filter for You Using the MERV Rating System

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The MERV (Minimum Efficiency Reporting Value) rating system was designed to help tell how well an air filter(also known as an AC filter or furnace filter) removes particles from the air. Higher rated filters are more efficient at removing a larger percentage of smaller particles from the air each time it passes through the filter.

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