Filtrete 3M Eureka Style RR Micro Allergen Vacuum Bag (Set of 10) 3M filtrate vacuum bags are guaranteed to be free from defects in material and workmanship Micro allergen vacuum bags capture 94Percent of particles larger than 1 micron in size, including dust mite debris, grass and ragweed pollen Replaces eureka part numbers 61115B, 63295A, 63649, 62437 Replace bag every 30 to 60 days for optimum performance Fits eureka 4870 series uprights, including boss smartvac uprights