- Natural and scent-free - Effective clumping - High odour control - No dust PrimaCat Ultra Compact cat litter is made of super premium quality, 100% natural sodium bentonite. It forms firm clumps quickly and it’s 99.8% dust-free. Perfectly sized granules effectively control odours and feels very pleasant under your cat’s paws. The cat litter also last long, as you do not need to change all the litter when cleaning – just remove the solid clumps and the box is clean again. This unscented cat litter is suitable also for cats with an accurate sense of smell.