Our solar ventilators use solar energy that drives micro motors which automatically change air inside the caravans, boats, and green house, etc.  The unique design can gather sunrays directly and increase the highest efficiency of the solar power.  It will prevent mold, condensation, mildew, musty odors, damp, etc. at the area being ventilated.
You can use the Vents in caravans, RVs, boats, yachts, green houses, attics, bathroom, lorries, vans, offices, unoccupied holiday homes, garage, portable toilets, telephone boxes, stables farm building, Dog Cages etc., are now being adopted worldwide.