O₂-O₃ relationship with high, low, and modern N₂O models for planets around the Sun and M5V hosts. Vertical dashed lines indicate O₂ levels of 100%, 10%, 1%, and 0.1% PAL. The phenomena causing maximum O₃ production for the planet around the Sun to occur at O₂ values less than the maximum O₂ value modeled are explained in depth in Kozakis et al. (2022). In general, the M5V-hosted planet experiences significantly less variation in O₃ for different N₂O abundances than the Sun-hosted planet because the low UV flux of the M5V host is not as efficient at converting N₂O into NO_x as other hosts with higher UV fluxes. O₂-O₃ relationships for planets around all hosts and comparisons to Kozakis et al. (2022) are in Figure A.1.