The impact of PVC on environment has been found to be positive when compared with the other materials used in production of window profile and door by LCA (Life Cycle Assessment) analysis, which is an updated assessment system considering the life cycle from production to disappearing and the exposure of environment during this cycle, and in independent studies. The most recent research findings, which PVC’s impacts on environment and health were investigated, have shown that PVC does not pose a risk in terms of environment and health (suc as cancer).