I've just started soldering and am concerned about health issues. I work in a well-ventilated area, about two feet from a window with an exhaust fan. Most of the smoke quickly gets sucked out. I do occasionally smell the smoke from the solder, though, and since I'm using solder with lead in it, I'm wondering what I can do minimize exposure to it. Would a surgical mask or a mask like what painters use help at all, or would those be useless for this type of thing?