How Does It Work?
A central vacuum system consists of a power unit, which is installed away from the social areas of the house. From it, special ducts branch out across the interior, or exterior walls, or soffits, which end in a vacuum wall inlets distributed strategically in the house.
In each wall inlet valve you can insert the lightweight hose with it's accessories, which lets you vacuum approximately 40-60 square meters at a time. Once making contact with the inlet, this one sends an electrical sign to the central unit which switches on automatically to start cleaning.