When the DC240 we just got runs, the odor from the toner (I assume that's what it is) is very strong. With the DC12, we had no such odor, or if it was there, is was so slight I didn't notice it. Is this harmful? Every time I go near the DC240 while it is running I imagine my lungs filling up with toner worse than if I was a smoker. We've aimed a fan at it, but maybe all that does is disburse the dust. Am I being overly concerned? By the way, I can't "see" any dust and don't notice anything settling on the items in the room. It's just that smell!