JWST/MIRI nuclear spectra of the central 0.7–1.3 kpc of the QSO2s, scaled in the Y-axis using a multiplicative factor to sort them out according to S_9.7 and smoothed using a boxcar of five. For reference, the flux densities at 20 μm measured from these nuclear spectra are 464, 249, 144, 114, and 75 mJy for J1100, J1010, J1430, J1356, and J1509. The amorphous silicate features at 9.7 and 18 μm and the crystalline silicate feature at 23 μm are highlighted with the light orange areas. The most intense emission lines and PAHs are labeled, with the high- and low-ionization atomic lines shown with blue and black dotted lines, molecular lines with red dotted lines, and PAH bands with black dashed lines.