MERV Rating
Minimum Efficiency Reporting Value — a filter's ability to capture particles, from 1 to 16 in residential practice. MERV 8 handles basic dust; MERV 11 catches pollen and pet dander; MERV 13 approaches light-commercial filtration but demands a blower and filter cabinet that can handle the pressure drop.
Parts behind the term
Whatever this term touches, it's on a shelf in Asheville with same-day pickup.