Continuum-subtracted MIRI spectrum of XUE 10 (black) and fiducial LTE slab models of H₂O between 6.4 and 7.6 μm (top panel) and between 18 and 25 μm (middle and bottom panels). The observed spectrum is vertically offset for visual clarity. The vertical dotted line marks the detected Hα line of the Pfund series. The colored horizontal bars indicate where H₂O lines are tentatively identified. The spectral uncertainty is indicated in each panel.