3M Filtrete Hoover Y & Z Antimicrobial Vacuum Bag - 3 bags Fits vacuum models All HOOVER* WindTunnel* (excluding WindTunnel* 2), Savvy*, Tempo* Widepath*, T-Series* WindTunnel* Pet, AutoDrive*, Breathe Easy*, Caddy Vac*, Dimension*, DirtFINDER*, PowerDrive*, PowerMAX* and TurboPower* 3500, 3700, 4500, 5000, 6000, 7000 Bagged Uprights. Allergen bags help trap household dust. 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.