Salt therapy has become to be popular in Europe in the 19th century. Despite to the explorations made by the salt industrialists in Poland 300 meters below the ground, it is recognized that no of the miners working in the salt ores are representing any lung diseases i.e. pneumonia and asthma. Thus, during the investigations performed the miraculous positive effect of salt caves on human health was discovered and construction of Salt Rooms commences, which provides the same atmosphere. There are around 300 Salt Room in the European countries (England, Netherlands, Germany, etc.).