e/Minimum Efficiency Reporting Value

Information
has gloss	eng: 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.
lexicalization	eng: Minimum Efficiency Reporting Value
instance of	(noun) device that removes something from whatever passes through it filter