91°F (32.7°C) in the factory I work at.
The law states “all factories must maintain a reasonable temperature and humidity.”
Nowhere is reasonable ever defined. I am mildly infuriated. And very hot lol
Edit: 94° (34.4C) now and this post has made it close to the top of “Hot”… The gods are having a laugh lol
You are 100% correct about concern for wet bulb temperature above body temperature, although we start getting concerned at a couple of degrees below body temperature too. The environment has to be a bit cooler so waste heat can be dumped fast enough, otherwise body temperature will begin to increase. Two degrees cooler is barely enough and it’s a miserable experience if you’re doing anything.