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According to theory, the torus of active galactic nuclei (AGN) is sustainedfrom a wind coming off the accretion disk, and for low efficient AGN, it hasbeen proposed that such structure disappears. However, the exact conditions forits disappearance remain unclear. This can be studied throughout the reflectioncomponent at X-rays, which is associated with distant and neutral material atthe inner walls of the torus in obscured AGN. We select a sample of 81 AGNsobserved with NuSTAR with a distance limit of D< 200\,Mpc and Eddington rate$\rm{\lambda_{Edd} \equiv L_{bol}/L_{Edd}<10^{-3}}$. We fit the 3-70\,keVspectra using a model accounting for a partial-covering absorber plus areflection component from neutral material. We find that the existence of thereflection component spans in a wide range of black-hole mass and bolometricluminosities, with only $\sim$13\% of our sample (11 sources) lacking of anyreflection signatures. These sources fall in the region in which the torus maybe lacking in the L-MBH diagram. For the sources with a detected reflectioncomponent, we find that the vast majority of them are highly obscured($\rm{\log \ N_H > 23}$), with $\rm{\sim 20\%}$ being Compton-thick. We alsofind an increase on the number of unobscured sources and a tentative increaseon the ratio between $\rm{FeK\alpha}$ emission line and Compton-humpluminosities toward $\rm{\lambda_{Edd}=10^{-5}}$, suggesting that thecontribution of the $\rm{FeK\alpha}$ line changes with Eddington ratio.

Observational hints on the torus obscuring gas behaviour through X-rays with NuSTAR data