Description
If you can find the 5 L: It’s a very good choice for a single cat, or as a trial size if you want to test the oxygen-control performance.
If 5 L is hard to find / expensive to import: Consider the 10 L or 20 L version, which may offer better value (and some local shops list those).
How to use it: Use a ~3 cm layer, remove solids regularly, and fully refresh when the litter seems saturated / not working as well.
For odor-sensitive homes: This is a strong contender, but you may want to monitor how long the oxygen control lasts in your conditions