Dongguan Yiwei Purification Technology Co., Ltd. is a high-tech enterprise which specializes in the design, manufacture, sales, installation and inspection of air filters and purification equipment. We have been increasingly gathering experience in air filter industry since the foundation in 2002, and adopted advanced technology, machinery and materials to produce primary, medium and HEPA air filters and purification equipment. At present, we are enjoying a high reputation in air purification field. With the progressive development of our company, we have had our own brand and more than fifty kinds of purification products are put into mass production. In addition, we have been certified by ISO9001 and IS014001. Our tenet is "quality first, credit first, reasonable price and good service". Yiwei has won the recognition of customers due to high quality and excellent after-sales