In recent years, with the rapid development of the automobile industry, automobiles have entered more and more families and become a part of people's lives. With the continuous improvement of people's living standards, the awareness of environmental protection and in car health is also constantly improving. The public's focus on cars has long been not satisfied with performance, handling, safety and energy consumption. In vehicle environmental health issues, especially the openness and transparency of relevant technical evaluation and results, have become the focus of consumers' attention. In order to address people's immediate needs, many authoritative organizations jointly initiated and led the "China Automobile Health Index" evaluation to ensure people's daily travel health.
 The China Automotive Health Index is an evaluation index that includes volatile organic compounds VOC, interior odor intensity VOI, electromagnetic radiation EMR and other indicators. The evaluation has strict and complex material selection and process standards, providing professional and reliable data for Volkswagen