The results of modeling the dust and gas around LPV 28579. The SAGE Epoch 1 (red dots) and epoch 2 (black dots) photometry as well as SAGE-Spec spectrum (black curve) shown with the best-fit 2Dust RT model (green curves) scaled to fit Epoch 1 and Epoch 2 photometry. The photosphere model corresponding to the best-fit SED is also shown (dashed curve). The model SED is convolved with the synthetic molecular spectrum shown in Fig. 2 to reproduce the 13.7 μm feature (pink curve).