One of the distinctive features of the cities of Yazd province which discriminate it from other cities, is the existence of various wind trappers. Most of them belong to old residential houses. On the other hand majority of urban reservoirs and mosques also have wind trapper. In other words the same are considered as respiratory tracts of the city. They are towers that, in respect to the special form of building, direct the natural air current to different sections of the building. Regardless of its utility, these constructions used to represent the owner's distinction and social standing. It could be judged by the height and adornments of these wind trappers.