Examples of fits the XMM-Newton spectrum of Obs. XM5. From top to bottom panel: fit residuals when only the obscurers covering fractions are allowed to vary from the values obtained for the average spectrum; fit residuals when only the obscurers column densities are allowed to vary from the values obtained for the average spectrum; fit residuals of the best-fit model where both column densities and covering fractions are permitted to vary freely; spectrum of observation XM5. The solid line represents the best-fit model. We rebinned the data for clarity.