Top panel: the fraction of total IR intensity (or flux) (TIR﹩={\int }_{1\,\mu {\rm{m}}}^{1000\,\mu {\rm{m}}}{I}_{\lambda }d\lambda ﹩) captured by different approximations and linear combinations of MIRI filters at a range of U. First, we present the fraction of TIR flux captured by the λI_λ approximation in the 7.7 μm filter (blue dotted–dashed), 21 μm filter (blue dashed), 7.7 μm + 21 μm filters (blue dotted), and all four MIRI filters (solid blue). Next, using the filter width Δλ for each MIRI filter, we present the fraction captured by ΔλI_λ in the 7.7 μm filter (red dotted–dashed), 21 μm (red dashed), 7.7 μm + 21 μm filters (red dotted), and adding all four MIRI filters (solid red). Finally, we present the fraction of flux captured in the mid-IR by an integral over the model dust SED as ﹩{\int }_{1\mu {\rm{m}}}^{25\mu {\rm{m}}}{I}_{\lambda }d\lambda /{\int }_{1\mu {\rm{m}}}^{1000\mu {\rm{m}}}{I}_{\lambda }d\lambda ﹩ (solid gray). Middle panel: similar to the top panel, now for opacity-weighted intensity (proxy for pressure) ξ_λ instead of intensity I_λ. Bottom panel: inverting the fractions in the middle panel provides the mid-IR to TIR correction factor ﹩{f}_{\xi }^{{\rm{TIR}}}﹩ at a given U. The correction factor from integrating the model SED (solid gray), adding up all four MIRI filters (solid red), and 7.7 μm + 21 μm filters (red dotted) is included for comparison. The MIRI-estimated ﹩{f}_{\xi }^{{\rm{TIR}}}﹩ using all four filters (solid red) is used for all ﹩{P}_{{\rm{Reprocessed}}}^{{\rm{Rad}}}﹩ calculations.