Membrane engineering in the preservation of cultural heritage Enrico Drioli1 Institute for Membrane Technology ITM-CNR, c/o University of Calabria, Via Pietro Bucci CUBO 17/C, 87030 Rende (CS), Italy 1Department of Chemical Engineering and Materials, University of Calabria, Via Pietro Bucci CUBO 44/A, 87030 Rende (CS) Italy 1 Membrane engineering in the last years has been doing very important progresses and in some areas, such as sea water desalination and water reuse, is already a dominant technology. The possibility of treating gas streams is also becoming of great interest for solving problems such as the CO2 separation and storage, hydrogen purifications, or as air dehumidification, O2/N2 separation, etc. The preparation of microporous hydrophobic or hydrophilic advanced materials as special tissue, or thin and ultrathin coatings on various supports is another areas where progresses have been significant. The possibility to transfer some of these interesting results to the preservation of cultural heritages is becoming realistic and appropriate. Some preliminary data are already confirming these potentialities. New opportunities might be discussed. It is interesting to realise that some applications might become as standard protocols in the design of new monuments or arts.