Face of thealteration of climate, the earth hoter and hoter. Fans linup were invented and play an important role in daily life. They give cool airblast, create comfortable air environment, fresh for people. Face to necessities needs Teral manufactured fans linup, various species and take advantage of natural energy , saved costs and reduce emissions to the environment. Not only usedventilation in building, school, hospital, restaurant, hotel, but also used in garage, underground. The presentof Teral fans help us have fresher environment.