Odor controlling power that last longer than clay alone. Tidy Cats Crystals technology dehydrates odor causing moisture. Antimicrobial agent inhibits the growth of bacterial odors. Highly effective dust control system eliminates 99% of airborne dust. Excellent for multiple cat households. Moisture absorbing litter blended with odor trapping crystals. Tidy cats crystals blend isn't just another cat litter, its a powerful weapon against odor and moisture that's formulated for the toughest environment of all- multiple cat households.