Shenzhen Zaiwan Technology Co.,Ltd is professional engaged in the research, development, sale and service of cooling fan , humidifiers , aroma diffuser , hand warmer and household appliance.   Our factory has 15000 square meters and nearly 300 employees, including more than 30 R&D engineers, nearly 50 staff of the sales team and production capacity of more than 20000 units per day. Our factory has ISO9001 and BSCI qualifications , and all products have certificates such as CE、FC、ROHS etc.