The powder is so fine that it’s almost invisible and doesn’t affect the clumping of cat litter. It can effectively absorb moisture, reduce the dampness and mildew of cat litter, inhibit the growth of bacteria and microorganisms, and extend the service life of cat litter. The nano-scale polymer fully blends with the cat litter and is less likely to cause dust. It’s a pet-friendly formula. One application can keep the fragrance for about 5 days.