Top 7 in Top 10 ways to reduce heat for homes in summer.
You should use the maximum types of ceiling fans, fans, ventilators... and adjust the rotor so that the front fin of the rotor is higher to create wind and better air circulation.
If you think the fan is just something to blow away the heat, you're mistaken. During the daytime you put the rear fan box facing out the window. It will push the hot gas out. When the temperature gradually decreases in the evening as well as night, open the window and put the fan near the window to blow cool air flow. If you want more cool winds, put a bottle of ice in front of the propeller.