From this article Printers 'as unhealthy as cigarettes':
“An investigation into 62 laser printers revealed that 1
7 of them - almost 30 per cent - released high amounts of minute toner particles into the air.
Professor Lidia Morawska from the Queensland University of Technology, who led the research, said: "Ultra-fine particles are of most concern because they can penetrate deep into the lungs where they can pose a significant health threat.
I suppose it might be alright to make copies as long as one does not inhale. Perhaps there are dangers of second-hand copying, and those who copy should be relegated to outdoor areas.
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