Preliminary reduced NIKA2 images (color-scale in mJy/beam) at 2.0 mm (150 GHz) and 1.2 mm (260 GHz) of 12 out of the 31 CHEMOUT sources observed (Fontani et al. in prep.). The contours start from the 5σ rms level in each map. The NIKA2 angular resolution is shown in the bottom-left corner of each frame. The black circles on the maps represent the 28 ″ beam, centered on the position targeted for the molecular line observations analyzed in this paper.