I love this cat litter! We currently have a closed box litter box in our open living space for our two cats. Prior to using premium clumping litter we had to change our litter a lot more frequently due to the noticeable smell when coming home at the end of each day. Having changed to Cat Evolution premium clumping litter we no longer notice the cat smell at the end of each day and changing the litter at the end of each week has become so much easier! Amazing!! I am really happy with Cat Evolution premium clumping cat litter and the great customer service from Cat Evolution - Thanks a million Mary!!