Your welcome! I have seen some discussion about breathing in garlic vapors but that also seems like tricky business as the concentration that kills microbes is just about the same concentration that kills lung epithelial cells. The authors suggested keeping a steady flow of glutathione in the person's system to help offset this problem, but I read elsewhere that microbes can also use glutathione to avoid damage. It is a dizzying and frustrating array of variables to try to account for.