Arm & Hammer Litter Double Duty Advanced Odour Control Cat Litter Deodorizer, 850-g box

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About This Item

Details

  • A-meow-zing Arm & Hammer Cat Litter Deodorizer.
  • You’ll notice lower odor levels after just 9 days of use compared to litter alone.
  • Add directly to any type of litter, including clay or clumping.
  • Moisture-activated scent refreshes every time your kitty uses her box.
  • Helps prevent clumps from sticking to your litter box bottom.

Ingredients

Instructions

Questions & Answers

21 Customer Questions

Will this work with an automatic litter box such as a Litter Robot?

Originally posted and answered on chewy.com
Answer by Chewy • Nov 20, 2025
This deodorizer will work when used with automatic litter boxes.

Can it be used with the Breeze Litter System and its Litter Pellets?

Originally posted and answered on chewy.com
Answer by Chewy • Oct 14, 2025
This can be used on almost any litter, such as clay, scoopable, or natural litter; however, there is no information regarding whether it's ideal with Purina's Breeze pellets specifically.

Is there a max limit to use per litter box cleanings?

Originally posted and answered on chewy.com
Answer by Chewy • Jul 26, 2025
This deodorizer can be used between litter changes to keep the box fresh. For best results, scoop for solid waste often and do full litter changes when the litter becomes darker.

Can this help prevent clumps of litter from sticking to the bottom of the box?

Originally posted and answered on chewy.com
Answer by Chewy • Jul 22, 2025
This is formulated to help be a litter deodorizer and has not been tested to prevent clumps from sticking to litter boxes.
Reviews
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4.8
Rated 4.8 out of 5 stars
14379 Ratings
Terms & Conditions

2990 Customer Reviews

Rated 5 out of 5 stars
By Adhara on Nov 4, 2024

This is a must!!!

I have an automated litter. I will add this to the litter collection drawer, and then add it to the litter when we are having guests. Really covers the smell when

I have an automated litter. I will add this to the litter collection drawer, and then add it to the litter when we are having guests. Really covers the smell when i dont have time to completely clean the litter machine. Its so effective I always have it on hand.

Rated 5 out of 5 stars
By Debra on Feb 12, 2025

Deodorizer

I have used before and my cats don't mind the smell.

I have used before and my cats don't mind the smell.

Rated 5 out of 5 stars
By Sarah on Aug 22, 2024

Good product

Good reliable product, we use it for every litter box change and in between to preserve freshness

Good reliable product, we use it for every litter box change and in between to preserve freshness

Rated 3 out of 5 stars
By Polly on Jul 18, 2024

Strong Scent

This is a bit too much for me. I will sprinkle it on the bottom when I change the litter but for everyday use it is too much

This is a bit too much for me. I will sprinkle it on the bottom when I change the litter but for everyday use it is too much

Rated 4 out of 5 stars
By Giovanna on Dec 18, 2025
Originally posted on chewy.com

Amazing product

I absolutely love using this deodorizer. It's always my top pick when it comes to these products. However, I was a bit bummed that it ended up getting squished during

I absolutely love using this deodorizer. It's always my top pick when it comes to these products. However, I was a bit bummed that it ended up getting squished during shipment. It opened up and started spilling all over my floors. I would definitely buy again, but most likely in person to avoid this problem

Rated 1 out of 5 stars
By Robin on Dec 27, 2025
Originally posted on chewy.com

HEAVILY fragranced!

I use unscented cat litter because both my cats and I dislike those scented litters. I should have read the reviews questions/reviews. The second I opened the tab,

I use unscented cat litter because both my cats and I dislike those scented litters. I should have read the reviews questions/reviews. The second I opened the tab, the fragrance was so strong, I could smell it across the room. I had to duct tape it closed. I'll stick with the regular Arm&Hammer Baking Soda. It does just fine.

Rated 5 out of 5 stars
By Kimberly on Jan 19, 2026
Originally posted on chewy.com

Makes the litter box less smelly

I have been using this stuff for years. A light sprinkle mixed with the litter makes living with a cat much more pleasant. I use a very small amount so it won't

I have been using this stuff for years. A light sprinkle mixed with the litter makes living with a cat much more pleasant. I use a very small amount so it won't be too overwhelming for Miss Cat. Far better than baking soda alone.

Rated 5 out of 5 stars
By Sally on Dec 6, 2025
Originally posted on chewy.com

It was made by Arm & Hammer!

I use this when I clean out their litter box. I flush their turds and put the clumps in a small trash can. Everytime I place some of this deodorizer on top and it

I use this when I clean out their litter box. I flush their turds and put the clumps in a small trash can. Everytime I place some of this deodorizer on top and it helps with any kind of odor. I smell no ammonia from there urine whatsoever! Instead of empting every day , I can empty it every two days, sometimes three. You can't even tell that I put their urine clumps in a trash can, it does a wonderful job of eliminating any and all odors!

Rated 5 out of 5 stars
By gothcatmom on Dec 29, 2025
Originally posted on chewy.com

Keeps it fresh

i always add this to the bottom of the litterbox after i cleaned it out with the litterbox wipes, makes it smell nice but a cloud will form which is expected from

i always add this to the bottom of the litterbox after i cleaned it out with the litterbox wipes, makes it smell nice but a cloud will form which is expected from baking soda related things. doesn’t cloud up dust as i pour the litter over it at least. pretty nice!)

Rated 5 out of 5 stars
By Sarah on Dec 7, 2025
Originally posted on chewy.com

boy is this STRONG

my new cats poops smell foul. it doesn’t help that his litter box, by circumstance, in my bedroom. i sprinkle some of this in and the smell is GONE. and my whole

my new cats poops smell foul. it doesn’t help that his litter box, by circumstance, in my bedroom. i sprinkle some of this in and the smell is GONE. and my whole room smells like the deodorizer. the only con is that it might be too strong, but i could just be using too much. but my cat isn’t put off by the smell and still uses his litter box.