Spray the cleaning solution on a dirty place, or soak with a sponge and leave it for a while, then wipe with a dry cloth or wipe with water. For stubborn dirt, it is effective to leave it for a few minutes and then wipe it off.
Before using, try it in an inconspicuous place and check that there is no abnormality such as discoloration before using. Pay particular attention to aluminum products (which may change color), tile joints and plastic products (which may change color), painted surfaces and fluorine-coated surfaces (which may peel off).