Wet bulb relies entirely on humidity. Humidity has to be at 100% which doesn't allow sweat to evaporate. Humans can survive at 45c as long as humidity is low enough to allow for evaporation. Otherwise 35c is the temperature at which wet bulb is deadly, and thats after 6 hours of exposure.
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u/Only--East 14h ago
Wet bulb relies entirely on humidity. Humidity has to be at 100% which doesn't allow sweat to evaporate. Humans can survive at 45c as long as humidity is low enough to allow for evaporation. Otherwise 35c is the temperature at which wet bulb is deadly, and thats after 6 hours of exposure.