This is the front room of the shop house where I am living. It is two stories tall. At the other end of this room is a mezzanine room looking down onto this floor. That is for the shopkeeper to keep watch over his stock when the ground floor is set up as a shop or business. I use that mezzanine room as an office.
The point to notice here are the vents over the front doors. Everything in the house is designed to let air circulate and flow through. Electricity, e.g., for fans, is quite expensive now. 25 years ago, when this house was built electricity was still in its infancy so houses were “cooled” by increasing air flow.