How to choose a cat litter box:
1. The size of the litter box should ideally be twice the length of the cat's body. If it is a closed litter box, pay attention to the height to ensure that the cat has enough space to move around in the litter box.
2. It's best to avoid stainless steel or glass materials, because when cats dig in the litter box, their paws will scratch the litter box, and if it's made of stainless steel, it can easily make a loud noise, which will frighten the cat.
3. When choosing a litter box, you should also consider the type of cat litter. Single-layer litter boxes are suitable for bentonite litter and tofu litter, while crystal litter and zeolite litter require double-layer litter boxes. 
How to clean a cat litter box:
1. Clean the litter box daily and add enough fresh litter.
2. If the area around the litter box gets dirty, clean it up promptly and disinfect it.
3. Clean the litter box thoroughly every day. You can spray it with disinfectant or place it in the sun to disinfect it.