2 86880 HEPA FILTERS For Sears KENMORE Vacuums. ~4 1/4 x 3 inches. Captures 99.7% of all Allergens down to .3 microns. Eliminates dust, dust mites, pollen, spores, most bacteria and animal dander. Utilizes gasket to eliminate air and dust leaks. Replace every six bags or 6 months.