Ugh. I didn't think about it when I bought this stuff.. but it is horrible! Normally I use tidy cat. It isn't too dusty, and it keeps the smell down very well. This special kitty stuff is complete crap! It reeks within days. It is SO dusty. Poor Lucy jumped in the litter box right after I refilled it (I scrubbed them today) and immediately started coughing and sneezing. I finished off the bag today, so next time it is back to Tidy Cat. We will just buy it from Sam's where I can get a big bag cheap. Yeesh.