Arm & Hammer Cat Litter Deodorizer with Baking Soda. Helps keep the litter box odor free and stay first-day fresh longer. Absorbs unpleasant smells at the source. It helps lift away unwanted hairs when you vacuum. Moisture-activated scent refreshes litter every time your cat uses litter box. Helps prevent urine clumps from sticking to litter box.