well I don't think it is just the smell, it gets dirty, the litter itself is just dirty.there are always little pieces that just don't seem to get scooped up. I have tried other brands, and the kind that the warehouse store, costco, makes is very good, as good as tidy cats, and its cheap for a large amount, BUT its too dusty, I don't want them breathing that. tidy cats is the best it only is slightly dusty when I pour it not when they cover or when I scoop.

Naomi, I might try that brand, it sounds good. I have tried so many and thought I had settled on tc but will try that kind...