Minimum Efficiency Reporting Value, or MERV for short, is a filter rating system
devised by the American Society of Heating, Refrigeration and Air conditioning
Engineers (ASHRAE) to standardize and simplify filter efficiency ratings for
the public. The higher the MERV rating, the higher the efficiency of the filter.
Simply stated, a MERV 8 filter will remove
smaller particles from the air than a MERV 3 filter.
Be sure to check what MERV rating your furnace filters are what is best for your home.
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