In 2001,Jan. Zhejiang Paper Research Institute was transformed into Purui Technology Co., Ltd., beginning its corporate operations

In 1989,June, Peritek developed and produced the first low dew point dehumidification unit of China

October,1973,~ December,1975, commissioned by three ministries and one committee (COSTIND), our Research Institute developed and produced the first desiccant wheel of China, and then beginning to provide high-performance dehumidification equipment for the major industries in China.

In 1975, the first dehumidifier was born in China; we were together with the dehumidifier career.