Dust, has been fazing the teaching for over 100 years. Technology, the power of accelerating the industry change. CenturyStar, eco-friendly teaching products, Green teaching mode—creating a new ear of healthy teaching. In last 100 years, the teaching mode with blackboard and chalk did harm to the teachers and students&＃039; health and heart. The morbidity of teachers&＃039; industrial disease such as pharyngitis, flecks on the lung, inflammation of bronchus, pneumonia is 30% higher than ordinary people. To reduce the harm to health and improve the quality of teaching has become a strong trend in the change of education field. CenturyStar possesses a professional scientific research team, successfully making use of our research achievements to the education field and solving the problem of dust pollution radically that the teachers and students have been fazed for almost 100 years.