This project that is carrying out the Institut Valencià de Conservació, Restauració i Investigació, vave several objectives related with the sustainability in the conservation processes. One of these objectives is the development of specific scientific methodologies for the evaluation of cleaning systems with eco-compatible and sustainable solvents. On the other hand, we are corring out a study of the of sustainable materials and methodologies in conservation and restoration available on the market from a critical evaluation of their effectiveness and feasibility, as well as the evaluation of possible risks to both human health and the environment.