Zheng and coworkers, 2023, propose the "temperature evolution of the Fano line shape in the Raman spectra of BaTiO3 nanoparticles". In the introduction, the researchers tell that "Fano line shape is one of the distinct characteristics for the quantification of solid materials. However, as the pervasive application of barium titanate, the industry application of Fano resonance mechanism has not been that popular" ( In the Figure by Zheng et al. we can see a Fano line, with a peak which seems centered at 185 cm -1 , and a range from 178 to 196 cm -1 , and a shift of intensity values. Let us conclude trying to investigate the spectra from RRUFF and ROD database to evidence the same Fano resonance. The only spectrum we can use is that from ROD, 3500224, laser 633 nm, in the range from 160 to 200 cm -1 . In the following Fig. , the fit of the data are proposed with a q-BWF function (on the left) and q BWF of the right. The q-BWF function as an over-Lorentzian asymmetric behavior. The result proposed in the Figure , on the left, is quite good. However, we have no information about the size of particles. Moreover, ROD tells that the space group of the sample is P2mm, that is orthorhombic. Therefore, a further study that we can make is that of decomposing the Raman spectra of tetragonal, orthorhombic and rhombohedral BaTiO3, such as those shown by Tyagi et al., 2018. The Figure of their article gives relevant differences, and therefore we expect different behaviors of q-BWF functions.