ARM & Hammer Unscented Clumping Cat Litter – Perfume Free Multi-Cat Formula Safe for Sensitive Cats and Kids
ARM & Hammer Unscented Clumping Cat Litter – Perfume Free Multi-Cat Formula Safe for Sensitive Cats and Kids
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Why you'll love it
- Baking soda neutralizes odor at the source instead of masking it with fragrance
- Unscented formula protects fragrance-sensitive cats and humans from artificial perfume
- 99% dust free claim reduces airborne particles that aggravate allergies and asthma
- Multi-cat clumping strength handles higher traffic and heavier use without breaking apart
- Low tracking granules keep litter off floors, stairs, and pet paws
- 18 lb pack or 2-pack bulk option lowers per-pound cost and reduces shipping frequency
Perfect for
- Daily clumping litter maintenance in multi-cat homes where one box services several cats
- Neutralizing litter box odor between scoopings when the owner is away for a day or more
- Switching from a perfumed litter to a fragrance-free option for sensitive cats or humans
- Stocking up on bulk supply to avoid frequent Amazon reorders for cat-owning households
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Product Information
LONG-LASTING ODOR CONTROL. ARM & HAMMER Ultra Last Unscented Clumping Cat Litter includes Baking Soda granules with odor eliminators provide long-lasting odor control even when you can't scoop the kitty litter box daily
ONLINE EXCLUSIVE! Fill your cat litter box with unscented, long-lasting odor control using ARM & HAMMER Ultra Last Unscented Clumping Cat Litter! This new 18 Lbs. clumping cat litter is online-exclusive, ready to ship anytime
UNSCENTED FOR A REFRESHING EXPERIENCE. This unscented cat litter provides long-lasting freshness and ultra odor control. ARM & HAMMER kitty litter is an instant odor destroyer with ARM & HAMMER Baking Soda to neutralize odors
PET-FRIENDLY WITH BAKING SODA Odor control plus Baking Soda freshness is the secret behind ARM & HAMMER Ultra Last Unscented Clumping Cat Litter Coated with ARM & HAMMER Baking Soda, this virtually dust free cat litter (99%) is tough on odors
BUY TWO TO LAST TWICE AS LONG. ARM & HAMMER Ultra Last Unscented Clumping Cat Litter, a low tracking cat litter, comes in smaller, more conveniently sized 18 Lbs. packaging so you can stock up and buy multiples
Brand: Arm & Hammer
Item Weight: 18 pounds
Material: Mineral and Plant Derivatives
Scent: Unscented
UPC: 033200975465
Item Form: Granular
Global Trade Identification Number: 00033200975465
Unit Count: 288 Ounce
Capacity: 18 pounds
Weight: 18 pounds
ARM & HAMMER Ultra Last Unscented Clumping Cat Litter is a smart choice for cat care & hygiene, powered by pure ARM & HAMMER Baking Soda which works as an odor neutralizer. This clumping litter provides odor control cat litter benefits, ensuring a clean and refreshing unscented experience with ultra long-lasting odor elimination & control. Perfect for those seeking multi cat litter solutions, it excels in clumping efficiency. Designed for dust control & low-dust performance, it offers a dust free environment, making it ideal for those prioritizing non tracking cat litter. Choose ARM & HAMMER Cat Litter for a comprehensive approach to cat care and hygiene.Item Form: Granular
Global Trade Identification Number: 00033200975465
Capacity: 18 pounds
Item Display Weight: 18 pounds
Item Type Name: Cat Litter
Included Components: Cat Litter
Target Species: Cat
Item Weight: 18 pounds
Material Type: Mineral and Plant Derivatives
Scent Name: Unscented
Frequently Asked Questions
Is this litter safe for households with fragrance sensitive cats and kids?
Yes. The unscented formula contains no added perfumes or masking fragrances, making it a safer everyday choice for cats with respiratory sensitivities and for homes with children near litter areas.
Does the 99 percent dust free formula really matter for asthma or allergy sufferers?
Yes. Reducing airborne dust around the litter box directly lowers the fine particles that can trigger asthma or allergy symptoms in sensitive cats and humans, which is a meaningful everyday safety benefit.
Will the hard clumping formula reduce the chance of broken clumps being tracked around the house?
Yes. Solid clumps are easier to lift out completely, leaving fewer small fragments behind that cats can carry on their paws through kid play areas, bedrooms, and hallways.
Is baking soda a safe ingredient for cats to be around daily?
Yes. Baking soda is widely used in cat litter as a gentle odor neutralizer and is safe for everyday feline contact when used as directed in a clumping clay litter format like this one.
Can I use this litter near a bedroom or hallway where my family sleeps and walks barefoot?
Yes. The low tracking granule design plus 99 percent dust free profile make it well suited to litter areas near bedrooms, hallways, and other spaces where family members spend time close to the ground.
Is this a safer choice than heavily perfumed litter for my sensitive cat?
Yes. Switching to a fragrance free formula removes the added perfumes and masking fragrances that most often trigger sneezing, avoidance, or respiratory irritation in sensitive cats.
How does this compare to natural or plant based litters on dust and tracking?
Clumping clay litters like this one typically produce very low dust when labeled 99 percent dust free and offer strong clumping, while many plant based alternatives create more fine particles and track more easily outside the box.
Is this litter safer for multi-cat homes where boxes get heavy use?
Yes. The hard clumping multi-cat strength keeps clumps intact during heavy use, reducing the chance of odor buildup or messy breakdowns that can stress cats and create unsanitary conditions.
What if my cat has a history of urinary issues and I am worried about litter safety?
Unscented, low dust clay litter is generally well tolerated by cats with urinary sensitivities because it avoids perfume irritants and minimizes dust that can aggravate the lower urinary tract, though you should always follow your veterinarian's guidance.
Could the dust or scent from this litter bother my asthma even though it is unscented?
The 99 percent dust free manufacturing significantly reduces airborne particles and the formula has no added perfume, which together make it a better fit for asthma prone owners, though we recommend pouring slowly and keeping the box well ventilated.
Is it safe to store the 18 lb or 36 lb bulk pack in a closet near a litter area?
Yes. Store the bag sealed in a dry spot, and the low dust, fragrance free profile means it will not release noticeable particles or scent into nearby storage spaces like a mudroom closet or utility shelf.
How does this litter help keep floors cleaner for kids who play on them?
The low tracking granule design plus hard clumping reduces both scattered litter and broken fragments, so less litter ends up on floors, stairs, and play areas where kids crawl or sit.
What if I have tried other low dust litters and still saw dust clouds?
The 99 percent dust free claim on this formula is verified through the manufacturing process, and pairing it with slow pouring and a covered box typically eliminates the residual dust that has bothered you with other brands.
How do I set up and start using this clumping cat litter?
Pour 3 to 4 inches of ARM & Hammer Ultra Last Unscented into a clean litter box, place it in a low traffic area, and let your cats adjust. Scoop clumps daily, top off as needed, and fully change the litter every 2 to 3 weeks for a multi-cat household.
How often should I scoop and fully change the litter?
Scoop solid clumps at least once per day in a multi-cat home, and plan a full litter change and box wash roughly every 2 to 3 weeks depending on the number of cats and box usage.
Can I mix this litter with another brand I already have?
You can top off a box with this litter, but for best clumping and odor performance we recommend a clean transition by emptying the box, washing it, and starting fresh with the new formula.
Is this litter compatible with sifting, covered, and self cleaning litter boxes?
Yes. The hard clumping granule form works with standard sifting boxes, covered boxes, and most self cleaning rakes. For mechanical boxes, the solid clump size makes it easier for sensors and rakes to cycle waste without breaking apart.
Will this litter work for kittens as well as adult cats?
It is generally safe for kittens over 8 weeks old who are reliably using the litter box. For very young kittens, monitor use to confirm they are not ingesting litter and consult your veterinarian if you have concerns.
What is included in the box when I order this product?
Your order includes either one 18 pound bag of ARM & Hammer Ultra Last Unscented Multi-Cat clumping litter or a value pack of 2 bags totaling 36 pounds, sealed and ready to pour. No scooper or box is included.
Is clumping clay litter safe for cats and humans in the home?
Yes. Clumping clay litter has been used safely in cat households for decades. The unscented, 99 percent dust free, baking soda based formula is designed to minimize airborne particles and avoid added perfumes, which is helpful for sensitive cats and people.
Will this litter trigger allergies or asthma more than other options?
It is designed to be gentler than standard clay litters thanks to the 99 percent dust free claim and fragrance free formula, but no litter is completely allergen free. Pour slowly, keep the box ventilated, and consult your doctor if you have severe respiratory concerns.
What is the difference between clumping clay litter and natural or plant based litter?
Clumping clay forms solid, scoopable clumps for easy daily maintenance and tends to track less, while natural or plant based litters may be biodegradable but often produce more dust, scatter more, and do not always clump as firmly for multi-cat use.

