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The Edit — Pets

What Is Clumping Cat Litter? How It Stops the Smell

Odour in a litter box is ammonia, produced when bacteria break urea down over hours. Fragrance covers it and clump integrity prevents it, which is why a litter's scent matters less than how well it clumps.

By Wren Calloway·Updated Oct 18, 2026·7 min

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Kit for animals, judged the way their owners actually use it.

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