HEPA - For Air Purifier - Remove Airborne Particles, Remove Mold Spores, Remove Smoke, Remove Pollen, Remove Dust Mite, Remove Allergens - 100% Particle Removal Efficiency - 0.01 mil (0 mm) Particles - 16.50" (419.10 mm) Height x 4.56" (115.82 mm) Width x 1.25" (31.75 mm) Depth - 1