Summary: According a new study, the microscopic toner nanoparticles that waft from laser printers may change our genetic and metabolic profiles in ways that make disease more likely. Getting printer toner on your hands is annoying. Getting it in your lungs may be dangerous.Feb 27, 2020
Is toner bad to breathe?
Printer toner behaves like fine dust, and it doesn't take much force to cause toner particles to become airborne. ... This suggests that the printer toner is not toxic and that there is a minimal risk to your health when you breathe in small amounts of toner.