I use a corn based unscented litter that clumps and I can flush it, World’s Best Cat Litter (WBCL). It is widely available in small bags.
You can get a big bag of WBCL at Canine Utopia, 1503 NE 78th Street, Suite 15, Vancouver. You can support a independent business and get super customer service.
If you change your cat’s litter, it should be a slow process. When you have half of the litter you have been using, add a little of the new litter to the old. Keep adding the new litter to the old until it is all new litter, take your time! Remember cats don’t like rapid change, let them acclimate over time to the new litter. This is one place we can’t afford to mess up.
For more information on the hazards of dusty litter go to this link http://bit.ly/1Kh4GFS