A Static Vacuum Cleaner generates a shield that allows the pressure zones to be separated and a depression zone to be created in the chimney itself, thus creating the suction effect. When the wind hits the Static Vacuum Cleaner, the design of its slats acts on the flow section, generating internal recirculation that facilitates the evacuation of smoke and gases. The tests carried out on our static vacuum cleaners showed excellent results even at minimum wind speeds, proving highly effective in eliminating the gulf of smoke and gases. In this way, it is possible to optimize the efficiency of the aspiration process, giving the appropriate and adaptable solution to numerous locations and sizes in buildings.