Relation between the X-ray hydrogen column density and the Eddington ratio for the BCS₄₀ sample. Blue, green, and red symbols represent Sy1, Sy1.8/1.9 and Sy2, respectively. The yellow shaded region corresponds to the region where X-ray column density might not be representative of the molecular gas column density of the torus (i.e. ; García-Burillo et al. 2021). The orange solid line is the limit for IR dusty outflows derived by Venanzi et al. (2020) (assuming L_AGN = 2.2 × 10⁴³ erg s⁻¹), and the black dashed line represents the blowout limit predicted by Fabian et al. (2008). Filled bar and hourglass symbols denote galaxies best fitted by torus and disc+wind models, respectively. Filled circles represent those galaxies not fitted by any of the models used in this work.