I did not intend to imply that this would be sufficient to prevent heat stroke without other mandated safety measures. However I was thinking more along the lin

I did not intend to imply that this would be sufficient to prevent heat stroke without other mandated safety measures. However I was thinking more along the lines of an additional precaution to regular breaks and plenty of cold water. My thought is to prevent death. There are circumstances under which no matter what procedures you use, heat stroke happens anyways. People with heart disease, diabetes, obesity, or even just a winter on the couch can contract heat stroke where everyone else is fine. Alcoholics tend to be the worst off. Heck, I kind of want something like this for mowing my lawn some days.