Ambra Nanni Title: Asymptotic Giant Branch dust production at different metallicities Abstract: We present new dust yields ejected by low- and intermediate-mass AGB stars (0.9 Msun <= M <= 6 Msun). Several choices of the initial metallicity have been considered, as well as both solar-scaled and alpha-enhanced chemical mixtures, in order to encompass the typical values observed in the Galactic discs as well as in the Halo and in the Bulge. We discuss the dependence of (a) the dust mineralogy along the AGB phase and (b) the integrated dust yields as a function of the initial mass (hence age) and composition of the AGB mass-losing stars. (with Bressan, Marigo)