YESIANG is certified by ISO 9001:2015 and ISO 14001:2015 international double certification, and has several patents in Taiwan, China and the United States. With abundant research and development energy, using the unique patented technology, the filters can effectively remove NOx and SOx without any outgassing. Moreover, YESIANG's regenerative chemical filter can effectively remove low-boiling volatile organic compounds such as IPA, Acetone, MeCl2, and no VOCs outgassing phenomenon. The key technology has been synchronized with the 3nm semiconductor process to meet the needs of the 3nm process for air micro-pollution filtration prevention, to help customers to maintain yield and reduce costs.