Top: [O III] maps of COS1118. From top to bottom: total, narrow and broad components. From Left to Right: flux, velocity and velocity dispersion. Black contours mark the outflow region used to produce the outflow-integrated spectra. Bottom: Close-up on the Hβ+[O III] complex (Left) and the Hα+[N II]+[S II] complex (Right) of the continuum- and BLR-subtracted spectrum of COS1118 integrated over the 3σ mask of the broad [O III] emission. Data and residuals are in black, total model is in dashed orange, single line components are shown as dark to light purple. Component 1 corresponds to the narrow component, additional components add up to the broad component.