Give us 7 days. We'll give you an odor-free home, guaranteed! Arm & Hammer clump & seal platinum litter is a patented complete odor sealing clumping litter with a zero dust formula and 10% more odor eliminators than our clump & seal fresh scent formula. No other litter brand forms an odor-containing seal around urine and feces and destroys sealed-in odors on contact with unique, powerful odor eliminators and Arm & Hammer baking soda. Extra strength formula powerful enough even for multi-cat homes.