AS a former refrigeration mechanic, I have had too many experiences with phosgene. The old CFC refrigerants will form phosgene when exposed to flame, especially in the presence of copper. We were warned about this in trade school. Fortunately, my exposures were much smaller than the guy in the article however, I have heard that there is a lifetime exposure limit. I don't know how much of my limit I have used, but it is plenty. The smell i will never forget, nor the gag reflex of it in my throat.
My point here is that you can create phosgene from a leaky A/C unit in your truck without even buying hazardous solvents. I don't want to scare anyone, but if the A/C system has a leak, either get it fixed or emptied ASAP.
