Arm & Hammer Multiple Cat Litter Deodorizer with Baking Soda helps keep your litter box odor free while the litter stays first-day fresh longer. Arm & Hammer Baking Soda eliminates odors on contact. Our Deodorizer features a moisture activated scent that refreshes the litter every time your cat uses the litter box. Plus, our patented technology helps prevent urine clumps from sticking to the litter box making for an easier clean-up. For use with any litter (clay, scoopable, natural, scented or unscented) to add extra odor protection to the litter box. Ideal for multiple cat households.