I use Arm and Hammer unscented scoopable and clean it several times a day. My cat is older and has had bladder surgery. I do notice the odor is stronger the longer she holds it .... but who can force a kitty to go? Our kitty potty is in the laundry room which one has to pass through coming in from the carport. With the Arm and Hammer we don't notice an odor. We keep the floor cleaned and wash out the litter pan every little while. Hope this helps.