Odor Removal Pleated Air Filter Style - Air Filters Panel Nominal Filter Size 18x25x1 Filter Efficiency - Air Filters 25 Percent Media Material Impregnated Carbon Common Applications Nuisance Odor Removal Carbon Concentration 20 g /sq ft CCL4 Activity 60 Percent Frame or Header Material Beverage Board Media Color Black Media Area 4.7 sq ft Performance Rating Odor Removal Pleats per Linear Foot 9 Filters Out Odor Removal Air Flow @ 300 fpm 938 cfm Air Flow @ 500 fpm 1 563 cfm