Filtrete 67726 Eureka AS Vacuum Bags (3-Pack)-- (Package Of 6) Eureka Type-AS Fits Eureka: Airspeed ABS - Advanced Bagged System (AS1050 & AS1150A Series) uprights Filtrete Micro Allergen Vacuum Bags capture 90% of particles larger than 1 micron in size Vacuum Bags should be replaced every 30 to 60 days for optimium performance