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MERV Air Filters

What is a MERV?

MERV stands for Minimum Efficiency Reporting Value, which is the industry standard for evaluating the efficiency of furnace/AC filters. This test was developed and is maintained by the American Society of Heating, Refrigeration and Air Conditioning Engineers (ASHRAE). The test is a determination of the filter’s ability to trap particles that we breathe. Filters for residential use are typically rated in the range of MERV 1-10.