Optical and X-ray properties of the dips where we observe an increasing X-ray absorption, described in Table 6. The left panel shows N_H versus FWHM of the dips, the central panel shows ΔN_H due to the dips versus the ratio between the 10% photon energy quantile E_10% observed during the dip and that in the average X-ray spectrum, and the right panel shows ΔA_V increment observed during the dip versus the E_{10% dip}/E_{10% average} ratio. In all three panels, different symbols are used to mark dips with different N_H/A_V ratio and the labels show the stellar Mon-IDs.