Stop stubborn litter odors with Boxiecat Air Lightweight Extra Strength Unscented Clumping Cat Litter. This lightweight litter made with barley is free from heavy clay and dust, making it easy to pick up and pour. Non-stick clumps work quickly to lock away moisture and help keep your feline’s facilities fresh. Plus, natural probiotics gently eliminate odors without masking them. This extra strength formula is great for high-protein diets that can add ammonia to your kitty’s wee.