They are ideal for applications where space is limited and high volumes of airflow are required. FCF roof fans work with minimal noise. Due to the ideal blade angles it offers a strong air flow. Silent operation is achieved with sintered bushing motors. The extraordinarily powerful motor of this device ensures particularly efficient air extraction. A major benefit of the fan is its low noise level despite high air flow. High performance roof fan, fan, fan with air ducts of the same diameter customizable. The roof fan has a pre-holder for easy assembly and disassembly. High performance roof fan, fan, fan is suitable for mounting on the roof and pipe connection. Among other things, it is used for air extraction, for use in non-residential spaces such as kitchens, offices, garages, warehous.