Broughton manufacture a range of commercial cooling and ventilation fans this is the MB50 model. The fan itself is built into a tough plastic ABS enclosure making it suitable for commercial and industrial uses. The robust controls allow you to alter the fan speed whilst the design of the fan blades gives a high air flow whilst keeping noise to a minimum. Another major selling point with the British manufactured MB50 fan is that it comes with a 2 year guarantee, unlike most of the competitors that only offer a 1 year guarantee. Two voltage versions are available the 230 volt model to be used via a standard 13 amp plug and a 110 volt model that is suitable where mains equipment cannot be used such as building sites.