MERV is an acronym that stands for ‘Minimum Efficiency Reporting Value.’ It’s a standard that basically lets you know how well an air filter is operating according to its purpose. MERV ratings begin at 1, and increase up to 16. The higher the number of your MERV rating, the higher quality the air filter’s air filtering – its ability to capture even microscopic particles from the air – is, which reflects both it’s value, and it’s ability to ensure clean and healthy indoor air quality for you, your household, or your commercial property.