The pre-motor filter and the post-motor multi level filter are located inside the filter tray underneath the lock n’ seal lever. Lift the pre-motor foam filter to view the post-motor Multi Level filter. The foam filter can be washed with water and mild detergent. The Multi Level filter cannot be washed and must be replaced when dirty. The plastic inner cyclone and grill cyclone can also be removed from the upper tank by turning in the unlock position and pull out to be wiped down or rinsed off. If it they are rinsed off, they must completely dry before replacing back into the vacuum.