Why is there no air duct in Hulunbeier's hotel?

Many places in Hulunbeier do not provide hair dryers. According to relevant information, hotels, yurts and hotels generally do not provide hair dryers, because the weather in Hulunbeier is dry and electrical appliances such as hair dryers are prone to short circuits. Hulunbeier, located in the northeast of Inner Mongolia, borders Heilongjiang in the east, Russia in the north and Mongolia in the west, with a total length of1733.32km. It has eight national ports, the most famous of which is Manzhouli, which is the largest land port in China.