Project introduction: Three large-scale industrial water spray cooling towers are installed in the factory area of Dongfang Cement Plant. The water spray noise and fan noise generated during operation seriously disturb the lives of nearby residents. In order to control noise emissions, the NCC Shenzhen team provided the overall cooling tower noise reduction design and installation acceptance services. The project adopts NCC ventilation muffler and sound insulation screen products. The project lasted for half a year and passed the acceptance of the local environmental protection department and a third-party authority.