This review is a brief account of R& D results generated from drying behavior of carpets. First of all, the mathematical rela­tions are reviewed and then, they are developed in detail, which may be used to describe the moisture sorption mechanisms of car­pet. The effect of important parameters during the drying pro­cess are discussed and the mathematical relations are formulated to illustrate the range of their applications. However, challenges remain to be overcome through innovations, R& D investigations and advanced engineering, especially in designing process control devices.