Arm & Hammer? Clump & Seal? Complete Odor Sealing Litter Fresh Home is a revolutionary cat litter that first seals and then destroys odors. The sealing is by a proprietary blend of moisture-activated Micro-Granules that form an odor containing seal around urine and feces. Then a powerful formula with heavy-duty odor eliminators plus Arm & Hammer? Baking Soda destroys sealed-in odors on contact.