Aducted vacuum systemis a vacuum system that lies behind the walls, and you plug in a vacuum attachment in each wall when you want to clean it. You can retro-fit a ducted vacuum system but usually it's best to install one when your home is being constructed or renovated.
The key benefit of a ducted vacuum system is ease of use - you can vacuum your home without carrying a vacuum cleaner around which is particularly useful in a large home or office.
Other advantages of a ducted vacuum system