Although previous studies have investigated the presence of psychometric comorbidities in individuals with emphysema, our understanding of the impact of emphysema on general mental health and specific dimensions of mental health, such as social dysfunction and anhedonia, depression and anxiety, and loss of confidence, remains limited. This research aims to examine the influence of emphysema on general mental health and its dimensions using the GHQ-12 assessment. By employing confirmatory factor analysis (CFA), the predictive normative approach, and one-sample t-test, we analyzed data from Understanding Society: the UK Household Longitudinal Study (UKHLS), including 97 individuals clinically diagnosed with emphysema and 8980 individuals without a clinical diagnosis of emphysema. The findings of this study indicate that individuals with clinically diagnosed emphysema experience poorer general mental health (t(96) = 8.41, p < 0.001, Cohen’s d = 0.12, 95% C.I. [0.09, 0.15]), increased levels of social dysfunction and anhedonia (t(96) = 6.02, p < 0.001, Cohen’s d = 0.09, 95% C.I. [0.06, 0.11]), heightened depression and anxiety (t(96) = 7.26, p < 0.001, Cohen’s d = 0.11, 95% C.I. [0.08, 0.14]), as well as elevated loss of confidence (t(96) = 6.40, p < 0.001, Cohen’s d = 0.09, 95% C.I. [0.07, 0.12]). These findings suggest the need for intervention programs aimed at improving the mental health of individuals with emphysema.