Pre-Motor Filter (3 pieces) for the Pet Hair Eraser Lift-Off Upright Vacuum Cleaner - Series 2087. Replace this filter every 3 - 6 months! To Clean/Replace the Pre-Motor Filters: Press the dirt container Release Button and pull away from vacuum. Twist tank cover to the unlock position then pull up on the handle. Pull down on the Pre-Motor filter to remove. There are three pieces to the Pre-Motor filter. All are washable. Be sure to dry all filter layers separately and they are fully dry before reassembling and returning to the vacuum.