Minimum Efficiency Reporting Value
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Minimum Efficiency Reporting Value, commonly known as MERV Rating is a measurement scale designed in 1987 by the American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE) to rate the effectiveness of air filters.
The scale is designed to represent the worst case performance of a filter when dealing with particles in the range of 0.3 to 10 microns. The MERV rating is from 1 to 16. Higher MERV ratings correspond to a greater percentage of particles captured on each pass.
[edit] References
- M.N.Rama Rao & Company. Industrial Filters (Eurovent and ASHRAE Classifications). Retrieved on 2007-09-19.
- Wilkinson, Ron. Air Filters: New Facilities, New Standard. Retrieved on 2007-03-29.
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