Ring Panel Air Filter Style - Air Filters Panel Performance Rating MERV 8 Nominal Height 22 in Section Width 22 in Number of Sections 1 Filter Efficiency - Air Filters 25 Percent Media Material Synthetic Number of Ply 3 Media Color Blue Filters Out MERV 5-8 Mold Spores Dust Mites Cat Dog Dander Hair Spray Fabric Protector Dusting Aids Cement Dust Pudding Mix Removes Particles Down To 3.0 to 10.0 microns Air Flow @ 300 fpm 1 200 cfm Air Flow @ 500 fpm 1 968 cfm