Air Filter Roll Style - Air Filters Roll Nominal Filter Size 48 in x 30 ft x 1 in Performance Rating Less Than 5 MERV Filter Efficiency - Air Filters 20 Percent Common Applications General Use Media Material Hog Hair Surface Tackifier No Media Color Blue 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 micron Initial Resistance @ 300 fpm 0.14 in wc