MERV Rating is the primary rating system used in the industry, both domestically and internationally. Established by the American Society of Heating, Refrigerating, and Air Conditioning Engineers, MERV rates a filter’s ability to capture and hold particles and pollutants.
MERV represents the minimum efficiency reported value. Air filters are measured by a MERV rating, and the higher the rating, the more pollutants the filter is able to capture.