3M Filtrete Hoover A Micro Allergen Vacuum Bag Nullify Imported Fits vacuum models HOOVER* Concept One*, Concept Two*, Constellation*, Commercial Lightweight, Commercial Guardsman*, Decade 80*, Decade 800*, Elite*, Encore*, Futura*, Innovation*, Legacy*, Preferred*, PowerMAX*, RS*, Runabout*, Soft & Light*, Spectrum*, Spirit*, Sprint*, Supremacy*, Tempo*, Top Fill Convertible*, TurboPower* (1500, 2000, 2200, 3000, 3200, 4000, 4200 Series) and Widepath* Preferred* Uprights. BISSELL** Soft Body**, Power Partner**, Microlock**, Harde body** and PowerGroom** Uprights. Micro Allergen bags help trap 90% of airborne pollutants 1 micron or larger, including household dust, dust mite debris, grass and ragweed pollen. Vacuum Bags should be replaced every 30 to 60 days for optimium performance. All vacuum brand and model names are registered trademarks of vacuum manufacturers.