30 yrs ago, when I lived in snowy/frozen central BC, I fired many, many boxes of .22 CB longs in the basement. The noise was barely heard upstairs and not by any neighbors. Sincerely doubt that I'm harmed by any lead exposure, but then again I didn't shoot until I smoked the place up either! Like many things nowadays, just use a little of that "uncommon" common sense. The stress of worrying about it is far more likely to kill ya than any "lead exposure" would IMO! Of course these days, if one was to die of lead exposure, the lefty libs would tie it to owning a handgun so I suppose so you might wanna worry about that.. :lol: ....FWIW, Dennis (Who has also been casting and handling lead bullets for decades too with ventilation. I'm sure if I get sick, B. Hussein will save me... :shock: )