Arm & Hammer Cat Crystal Deodorizer for Kitty Litter Box - Calming Lavender & Vanilla Scented Cat Litter Smell Eliminator - Crystal Odor Control for Cats Mess Cleanup - Pet Home Supplies, 15 Oz

I don't have a cat. so am not sure how this works for a litterbox. I do have a canister vacuum that smells musty no matter how many filters are changed and no matter how many times it is cleaned with deodorizing cleaner and/or bleach. It smells fine for a couple of days, then gets musty again.I add this product when changing the bag, and it keeps the mustiness away for a long time. I just open the top of the crystals container and suck some in after putting in a new bag. It doesn't need a lot and one container of crystals will last a long time, so don't waste money by letting a lot get sucked up. It really doesn't take much of the product to eliminate the musty smell.I like the smell of the lavender and vanilla, and I wish I could smell it more when using the vacuum. You really can't smell this product much, if at all, when vacuuming. It's a bit of a bummer because I like the fragrance, but it does stop the vacuum from smelling like a wet dog, so it's not masking the smell with another smell. It just works great to keep the mustiness away until it's time to change the bag again.

Works very well. I sprinkle some on top every time I clean the box and any odors are eliminated. I have 2 cats and hate when houses smell like a litter box. This definitely helps that not happen in my home.

Tiene buena fragancia pero es mejor la versión tradicional en polvo.

great stuff and really aromatic

Works great!!

Smells okay, the scent is strong, just not my personal fav. I usually buy things like this in person but hey, I got what I needed delivered to my front door. My kitty seemed to like it, not sure the lasting agent in it but it did make a difference with the cheap litter that was purchased. I still dont smell anything in my house so it got the job done and thats what matters most!

We love using this. We have 2 cats and this keeps the cat toilet fresh.

If you expect a lavender smell, don't buy this. For the brand, I expected better. Almost smelled like plastic from China (if you know what I mean). Very unpleasant. I bought for my mom's cat litter box, in Indiana. Waste of money.