Cartoon illustration of a two-component attenuation model. The model consists of a more attenuated component with high A_V and a less attenuated component with low A_V. The emission lines from both components are mixed in observations. While the high A_V component is (part of) a dusty H II region, the low A_V component could be a part of the H II region that is less dusty, the DIG around the H II region, or a combination of both.