Activa Inc. is committed to the research & development of cooling fans & motors. Based on more than 20 years of experience in mold and component plastic injection manufacturing, SYM BANG has become a specialist manufacturer of exhaust fan through its advanced technology and full line of ventilation system. The most advanced testing facilities in the industry are continuously being utilized by our application engineers in conjunction with production engineers to push to the limit both designs and material to formulate the next generation of commercial ventilator fan. In addition to 100% on-line testing, SYM BANG performs periodic audits on each product to assure precise quality control. All SYM BANG fans are designed to meet the UL, CSA, TUV, CE & CUL requirements. SYM BANG had set up a quality assurance process standard for production and quality control. All SYM BANG products are subjected to a meticulous final inspection before delivery to customers.