Win the war against odors in your cats' litter boxes with Purina Tidy Cats LightWeight Free and Clean Unscented With Ammonia Blocker clumping litter, and help to maintain freshness for your cat companions. To meet the preferences of you and your cats, this unscented litter formula is free from fragrances and dyes, and the low dust clumping cat litter pours easily and cleanly into the cat litter box for easier changes and refills. Activated charcoal in the lightweight kitty litter absorbs odors on contact while preventing ammonia odor from forming for 14 days when used as directed, helping you enjoy a fresh-smelling and welcoming home. Weighing half as much as the leading clumping litter, Tidy Cats lightweight cat litter is easy to carry, pour and store for simple kitty litter box maintenance. The odor control clay cat litter formula helps lock in moisture, keeping your cats dry and comfortable.