jerry,i reccomend a good resparator when making ingots,and do it outside,i installed a 400 cfm range hood (got a deal on a dented one on ebay)12 inches above shotmaker,and vented it outside,and gloves(welders and rubber)when handeling lead.get check'd for lead yearly,have run 5 ton so far and im still in safe zone, and as long as you respect it,youll be ok,mark