Recommended by vets, Fresh Step Advanced Simply Unscented Cat Litter is free from added fragrances and dyes, with advanced odor control that stops odor on contact and controls odors longer than regular Fresh Step Simply Unscented Cat Litter. The Advanced Simply Cat Litter formula keeps kittys paws clean, which helps floors stay clean. Formulated to prevent bacterial odor growth on the kitty litter, this 99.9% dust-free unscented cat litter was made with your cats health and happiness in mind. Activated charcoal guarantees 10-day odor control to keep cat litter box smells at bay and your house smelling fresh without added fragrance. Cleaning is fast and easy with clumping cat litter that quickly absorbs liquids and traps odors, forming tight clumps and leaving virtually no stinky crumbles behind after scooping.