MERV 1-4
Types of Media/Filters:Disposable fiberglass panel filters, Self cleaning filters (permanent), "Electrostatic" paper filters, Metal foam filters, Foam filters, "Hogshair" coarse synthetic fiber
Particulate Size Filtered Out: Greater than 10 microns
MERV 5-8
Types of Media/Filters:Pleated panel filters, Extended surface electrostatically enhanced synthetic fiber filters,
Media panel filters, synthetic media filters
Particulate Size Filtered Out: 3 to 10 microns
MERV 9-12
Types of Media/Filters:Non-supported bag filters, Rigid frame box filters (deep pleated electrostatically charged synthetic media) also Extended surface pocket filters, Rigid cell/cartridge filters,
Particulate Size Filtered Out: 1 to 3 microns
