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Best Odor Control

Arm & Hammer Clump & Seal Platinum

Baking soda-powered odor elimination keeps multi-cat homes smell-free for days, even when scooping is skipped. Tens of thousands of five-star Amazon reviews and constant Reddit recommendations back up its tight-clumping reputation.

$18-$27
Pros
  • Baking soda formula neutralizes odors even when left unscooped for several days
  • Forms tight, easy-to-remove clumps ideal for automatic litter boxes
  • Tens of thousands of five-star Amazon reviews and widely recommended on Reddit
  • Available in an 18-lb box at a reasonable price point
Cons
  • Scented formula — a dealbreaker for cats sensitive to fragrance
  • Some tracking reported by users
  • Slightly more expensive per pound (~$1.05) than Dr. Elsey's
Why we recommend it

If odor is your #1 concern — especially with cats in a living space — Clump & Seal Platinum is the one. The baking soda formula genuinely neutralizes ammonia smell in a way plain clay can't match.

What the community says

We switched to arm and hammer clump and seal slide for multiple cats. Works great in our lr4.

r/litterrobot · read thread →

I have 5 cats and spend a lot on litter, I get the Clump and Seal Slide litter and it works great but as I said its more expensive then most of the other ones on the shelves.

r/CatAdvice · read thread →
What the experts said

To our noses, there was no telltale smell even after it was left unscooped for several days.

Good Housekeeping · read full review →

Clump & Seal stands out for clumping well and being easy to scoop. I've seen it recommended on Reddit forums and it's got tens of thousands of five-star reviews on Amazon.

Good Housekeeping · read full review →