What Are MERV Ratings? Filter Efficiency Ratings Explained BY CAMFIL USA AIR FILTERS
MERV Ratings Explained
MERV is an acronym for minimum efficiency reporting value. The MERV rating and testing standard was first designed by the American Society of Heating, Refrigeration, and Air Conditioning Engineers (ASHRAE) in 1999 and is updated periodically, the last being in 2017. . . The MERV value represents the particle capture efficiency of a filter at specific size ranges.
The higher a filter’s MERV value, the better that filter is at capturing smaller particles.
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