Air Filter Pad Pad Nominal Filter Size 20x25x1 Performance Rating Less Than 5 MERV Filter Efficiency - Air Filters 98 Percent Media Material Paper Media Color Yellow Surface Tackifier No Filters Out Carpet Fibers Cockroach Debris Dust Mites MERV 1-4 Pollen Sanding Dust Spray Paint Dust Textile Fibers Removes Particles Down To Greater than 10.0 microns Max Velocity 300 fpm Nominal Height 20 in Nominal Width 25 in Nominal Thickness 1 in Package Quantity 50