This is more cost-efficient than clay cat litter by far, and I cannot smell a thing from the cat box. Also, it doesn't stick to my cat's feet like clay does and thus doesn't get tracked around the house like clay litter. A grain or two can get caught between my cat's toes and get flicked on the floor as she's stepping out of the litter pan, but that's it. The sharp glass-like silica crystals ARE as sharp as legos so I recommend to sweep regularly around the pan or wear house slides.Usage advice: You can visibly see the crystals that have absorbed a lot of waste, and I economize by scooping out the untouched crystals and topping up the pan with them after I dump out the waste. I find that liquid waste tends to filter down to the bottom of the box and form a layer underneath the less-soiled crystals, so keep an eye out for that.Be sure and wear a mask that filters well and seals well to your face when you're pouring it if you are at all sensitive to dust. I personally find breathing it in to be irritating to my nose and throat and sinuses. To my understanding, it's far too small of an exposure to cause health damage just breathing in the dust a little bit as your change the litter box every week or every other week, but I just find it unpleasant. It's unavoidable to have a fine powder of silica dust amongst the larger grains, so it's not an issue of false advertising or anything, just the nature of the material itself. If you have asthma, be cautious, and it's worth pouring it into the litter pan outside if you can.Overall evaluation -- if you have a cat and you're not using this type of litter product, you're doing your nose and your wallet a disservice.

Mi gato es alérgico a la arena y al polvo por lo cual ha sido una buena solución para seguir adelante

Durabilidad y calidad.

When my cat pee no smell very good

Libera un poco de polvo al principio y duró solo 20 días, pero es mucho mejor que la arena convencional. Absorbe muy bien la orina

Ni me gusto para absolutamente nada, me dejo con sensación de polvo durante días en la nariz, no pueden decir que fue mi calma porque recién la abría y el polvo se soltó, no es recomendable para asmáticos, ni para nadie, esta detestable, la tuve que tirar. ¡Pésima!

This is an excellent product. I wanted litter that had good odour control, my cats didn’t track it all over the house and it was easy to clean. This litter delivers. I wish it came in bigger bags and was more economical but nothing good is cheap.

I have one cat that is 4 months old, I ordered this with the following expectations : less dust so it wont get my sinuses acting up, less clutter, smell control, and to last a month. Unfortunately it did not meet my expectations. The dust will linger on my cat causing my throat to get itchy, clutter on the floor was more than minimal which i would have ignored if it was not for the other issues i faced using this litter. After 1.5 weeks the smell control starts deteriorating significantly, i scoop poop at least twice per day and my cat wont use the box if there is poop in it given the smell. Finally the litter barely makes it to 3 weeks without getting super stinky. In my opinion if u dont have bad sinuses and can afford 2 bags a month this is an ok unscented product.

UPDATE: October 18, 2021 Apparently, the seller reads these reviews. Thank you.I have tried numerous crystal litters but keep coming back to this brand. (Thankfully, the price has gone down to where we can afford it again.) It just is the best. This litter, along with a Johnny Cat liner and disposable litter pan, has made my clean up time a whole lot easier.I just set the Johnny Cat disposable liner in the litter pan, (I buy them at Wally World.) then I set the disposable litter pan on that. (They are for sale here on Amazon and at PetSmart.) They are made with baking soda in them and lasts two weeks with our two cats, and one of them pees a lot. They really do help with urine smell.Both of our boys always pees on one side, of the litter pan. Now, when they do, the disposable box absorbs it. I hated how litter would get soggy and the bottom, of the bin would become stained. So, with it and Ultra Kitty, I have the ideal combination.I am going to love having this set up when our bitter Minnesota winter gets here. Before, I had to put on my outer garments and boots, stand in the freezing cold and dump the litter into our garbage can. Then I had to put that into our trash bin. Now, all I have to do is pull the liner up over the disposable litter pan, tie it and dispose in the garbage. It is just that simple. This sure is going to be great during our freezing Minnesota winters. And, also, at my age, anything that saves my back, keeps me from freezing (in these bitter Minnesota winters) and saves me money, I am all for it.First Review: After trying clay, pine pellets and wheat, I finally, found a litter Max will use. Before, I was cleaning up poo, off my floor, every day. At least, he had the right idea. He would go close to the pan, but hotgo in the pan. Triedltra Micro Crystals. It has changed every thing I hated about litter. It is easy to scoop out the poo, which it neutralizes within seconds. It only takes me a few seconds compared to 10 minutes dealing with litter that stuck to the box and became like wet cement. When I tried using the pine pellets, (I even had a system made for them), the sawdust did not go into the bottom bin like shown on videos. And Max hated them. I mean really hated them. He would pee in it, but he would not poo.A friend gave me an expensive litter that was suppose to indicate if your cat has a kidney or urinary problem. It did nothing for that. Our Kit's kidneys were failing and we didn't have a clue. {That litter didn't show a thing except both cats were urinary healthy.} It did, however, get Max to stop going outside the box.I am one to save a buck wherever I can so I started doing research for a cheaper alternative. That is when I found this. From now on, I am using this litter. It isn't dusty, it stays fresh for a long long time and it is super easy to clean. My pockets thank you.No more struggling to carry a huge litter pan to the bathroom. These crystals are a win win all around. My sanity and health thanks you.After 30 years of lots of cats and every imaginable type of litter, I, finally, found the one I'm sticking with. (Excuse the pun.)