Damped Lyα (top) and Lyβ (bottom) absorptions in the SDSS J0839+2709 (left), J1253+1007 (center), and J1323+2733 (right) spectra. In each case, the spectral flux density in the DLA trough is well-above the zero-level, while the Lyβ absorption is at zero. No zero-level offsets are applied here. All three DLAs reveal narrow Lyα emission. A dashed red line marks the associated DLA, and a solid yellow line indicates the velocity offset of the quasar.