What is the purpose of humidity and temperature of the proofer in the dough?

Question

What is the purpose of humidity and temperature of the proofer in the dough?

Answer 1

The yeast become more active with heat. With more activity, more fermentation the more the bread rises.

Wet humid air contains more heat per volume than dry air at the same temperature. The hot wet air penetrates the dough with more heat than dry air at the same temperature hence more fermentation and more rising.