Self-cleaning litter boxes are designed to automatically sift and remove waste from your pet's litter. These devices typically use a rake or rotating mechanism that activates after your cat has used the box, separating clumps of waste from clean litter. This feature helps maintain a cleaner environment and reduces the frequency of manual scooping. Many self-cleaning litter boxes also include odor control systems, such as carbon filters or sealed waste compartments, to minimize unpleasant smells. They come in various styles and sizes, catering to different cat breeds and preferences. Popular brands include Litter-Robot and PetSafe, which offer user-friendly designs.