Fresh Step Advanced Extreme clumping cat litter destroys extreme odors with the power of Febreze. It gets rid of the strongest litter box odors with a tough odor eliminating formula and leaves behind a fresh Mountain Spring scent. Fresh Step Advanced Extreme also uses Fresh Step Clumplock Technology, which locks in liquid and odor and creates tight clumps for easy scooping, and prevents stinky crumbles from being left behind. And, it is 99.9% dust free for cleaner surfaces, cleaner air and reduced tracking. Cleaning is fast and easyjust add more litter to your cats litter box after you scoop. Certain trademarks used under license from Procter & Gamble Company or its affiliates.