Profile: Concept Engineering Systems is a manufacturer of an extensive range of industrial air handling products that includes air cooler unit, axial flow fan, cyclone & multi cyclone, fume scrubbers, centrifugal blower, automatic duct dampers, dust collector & separator, multivane dampers, exhaust grill & ducting. Our roof extractor is a motor driven fan unit and is provided with durable weather proof exhaust hood. This is ideal for extraction or air supply through the roof, usually preferred in factories, power plant, steel plant and foundries.