I'm glad to hear that Jimmy is doing better and I hope that the new litter will help. I've now switched to nonscented litter and I've been using Dr. Elsey's Ultra Precious Cat Multi Cat Scoopable Litter in my uncovered boxes and Premium Choice Extra Strength with Baking Soda Crystals Scoopable Litter in my 2 covered boxes. They're both virtually dust free and when I blow my nose after I scoop there's no dust in my nose or grey stuff left in my kleenex. I've noticed a huge difference and they both control the odor and my cats love them.