Mass distributions of the 100 pc white dwarf population spectrally classified into DA and nonDA by Jiménez-Esteban et al. (2023). Left panel: we employed a pure H atmosphere model for all DA white dwarfs and a pure He atmosphere model for all nonDA white dwarfs. The black, purple and blue histograms are the mass distributions of DA, nonDA, and all white dwarfs, respectively. Right panel: same as left panel, but considering a C enrichment following the C sequence −1 dex for all nonDA white dwarfs. The orange histogram shows the mass distribution of these nonDA white dwarfs.