Now laser printer produce a superb quality printout don't they? But beware of the health risk that comes with it. These machine are high particle emitters. The small size particle from the laser printer makes them easily inhaled and able to lodge in deep, tiny passageway of the lungs, which could resulted in simple irritation to serious illness.
So the next time when you send your printing to laser printer, you know what to do.
Source : PC Magazine Oct.