For the Xiaomi Robot Vacuum X20+, specific floor cleaners can be used, but it is important to follow certain precautions:

- Compatibility of cleaners: Make sure to use cleaners that are compatible with the type of floor you are cleaning. Some cleaners may damage certain materials, so choosing the appropriate cleaner is crucial.
- Dilution: Follow the manufacturer's instructions for diluting the cleaner. Too much detergent concentration may damage the cleaner or leave residue on the floors.
- Compatibility with the robot: The product manual and official Xiaomi guides do not specifically mention the use of detergents, so it is advisable to consult official documentation or contact Xiaomi customer support to confirm compatibility.

In general, it is always a good idea to use neutral detergents and dilute them according to the instructions to avoid any problems with the robot or floors.