Wind powered rotary ventilators are a popular choice for a wide range of applications.

Having the convenience of not requiring an external electrical power source they can be fitted to almost any stationary site where there is a breeze, or to any vehicle.

Rotary ventilators comprise two principal active elements.

The first is a wind scoop or 'savonius' rotor.  This element catches the wind energy and efficiently converts it to rotational kinetic energy.

The second element is a radial extractor fan.  This element is turned by the rotor and draws air from the space below, expelling it outwards.

Suitable for wide range of vehicles, including; vans, ambulances, 4x4's and many more.