For what its worth, my nose is within 18" of the front of a brother laser printer as I type this post. But I do two things. (1) I clean the insides on a regular basis and remove loose toner. (2) Especially since I do not print often, I simply leave my laser off when not printing, turn it on briefly to print, I leave the room while it prints, and then turn it off when done printing. And since the fan on the laser is not constantly blowing all the time, the fan is not the culprit that keeps Toner dust suspended. If I wanted additional safety, I could put a filter right in back of the fan.
Whoopee, it takes an extra 10 seconds warm up time before I can print, but I save eight watts of power all the time the laser is off.
