Keep your Pet Hair Eraser Lift-Off Running like new with a new set of filters and belts! Includes 2 Pre-Motor Filters, 2 Febreze Post-Motor Filters, and 1 Replacement Belt BISSELL recommends filter maintenance every 3-6 months dependent on use Over time vacuum belts can begin to stretch. Change your belt yearly to help maintain optimum performance of the brush roll This kit is designed for the average household with filter maintenance every 6 months. If you have pets that frequently shed, larger homes, large families, etc you may need to change your filters closer to every 3 months. This bundle is available exclusively with the purchase of the BISSELL Pet Hair Eraser Lift-Off Vacuum Cleaner. These products can be purchased individually on BISSELL. com at the links below: Pre-Motor Filter Febreze Post Motor Filter Belt Long Lasting Performance Bundle 2244