What does 2 Chronicles 29:18 mean?

Then they went to King Hezekiah and said, 'We’ve finished cleaning out the Lord’s whole temple, the altar for burnt offerings and all its tools, and the table for the bread and all its tools.' 2 Chronicles 29:18 - Modern Text Bible

(The Levites reported back to the king, letting him know that everything in the temple, including the main altar and the table for the special bread, was now clean and ready.)