For cat owners, cleaning the litter box is crucial. If not cleaned regularly, it can create unpleasant odors in the home, posing a challenge to both humans and the cat's living environment. So, with so many types of litter boxes and cat litter available, how should they be cleaned? 
If you have more than one cat, or if your cat has a particularly unpleasant odor, you should consider using a newer type of clumping litter. This type of litter feels similar to regular fine sand, and some cats may find it unpleasant. However, if your cat adapts well, you only need to remove their solid waste from the litter box daily. Newer clumping litter can significantly reduce odor problems, and you can save money as it only needs to be changed once a month.
Non-clumping mineral litter is the cheapest and most widely used option for cat litter, but it's also the most problematic. On one hand, traditional non-clumping mineral litter doesn't absorb odors well, so you have to change all the litter every time you clean your cat's waste. You can find litter deodorizers made with baking soda as a base, which are very effective at removing cat odors. Generally, traditional non-clumping mineral litter needs to be changed every three days. If you have multiple cats (three or more), you'll need to change it daily. If you only have one very clean cat, you only need to remove its solid waste from the litter box, and change the litter about once a week. In general, your nose will tell you when to clean the litter box.
Another option is absorbent crystal litter. This type of cat litter contains blue and white crystals with a coarseness comparable to non-clumping mineral litter, which absorb cat urine and neutralize odors. You will need to add fresh litter daily, remove solid waste, and turn the litter box over to remove urine-absorbing litter.
From an ideal odor control perspective (not from the perspective of your home environment), the number of litter boxes should ideally be the number of cats plus one. That is, if you have one cat, you need two litter boxes; if you have four, you need five. Also, don't place the litter box in poorly ventilated areas, such as the toilet or closets, as the odor will be difficult to dissipate. The ideal litter box environment for cats is: well-ventilated, peaceful, away from cat food and other pets, and completely free of any potential dangers.
