Add this to the water. Even when you don’t clean the floor in a week, it will remain clean without any dust

It sounds like you’re referring to something you can add to mop water that keeps the floor clean for days — but the sentence is incomplete.

Before I can help, could you clarify what you mean?

Are you asking:

1. “What can I add to water so the floor stays clean longer?”

or

2. “Is this claim true and what product does it refer to?”

or

3. “How do I make a homemade solution that prevents dust buildup?”

Let me know which one — I can give safe, effective cleaning mixtures that actually reduce dust and keep floors cleaner longer.