MaximalPower VB HOV865L 9 Replacement Type Y Vacuum Bags for Hoover Wind Tunnel And Tempo Upright Vacuum Cleaners, Part No. 4010100Y, 9-Pack Replacement type Y vacuum bags for Hoover Wind Tunnel and Tempo type Y upright vacuum cleaners Compatible Part Number: 4010100Y Filtration eliminates dust, dust mite debris, pollen, mold spores, pet dander, household fibers, grass, ragweed pollens and other airborne allergens Helps to improve indoor air quality