SanitaireA (R) UP 1 Bags (5 Pack) Fits SanitaireA (R) P1 and 6600 series uprights. Replace every 1-2 months. AirFilters.com These SanitaireA (R) UP 1 Bags fit SanitaireA (R) P1 and 6600 series uprights. Each package includes 5 vacuum dust bags from Arm and Hammer. For optimum performance, it is suggested to change your bag every 1-2 months! By retaining dust, pollen and other particulates and allergens from the air while you vacuum, these vacuum bags make the air in your home or business cleaner and more breathable. Purchase a pack for your vacuum cleaner today!