https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7413220/
Abstract quote:
In particular, laser printers are a primary source of particle emission that increases the concentrations of particulate matter in indoor atmosphere by releasing substantial quantities of electrostatic fine particles, at rates comparable with tobacco smoking and incense burning.
Have you seen IT budgets? Some vice-president of technology is going to be pissed his numbers look bad compared to his peers during their weekly numbers measuring contest.