Intersand Odourlock Cat Litter neutralises unpleasant odours for up to 40 days! Its patented technology blocks the formation of ammonia, which causes unpleasant odours. Ultra-fast clumping makes it easy to scoop and reduces the amount of litter used, cuttings down on waste AND reduces annual litter use by over 45%. Odourlock is 99.9% dust-free, which is better for your and your cat¿s respiratory systems. Leaves no tracking, so your home will stay clean all the time. Made with 100% pure, natural clay, recognised worldwide for its high quality. Satisfaction guaranteed.