How do i convince my friends family that ceiling fans actually work...?

Their dad doesnt like to turn on the AC becasue he has multiple vents in his office which makes it freezing. I went to turn on the big ceiling fan in their living room and they said not to becasue all fans do is push the hot air down onto everyone. How do i explain to them that breezes are better than stagnant,... show more Their dad doesnt like to turn on the AC becasue he has multiple vents in his office which makes it freezing. I went to turn on the big ceiling fan in their living room and they said not to becasue all fans do is push the hot air down onto everyone. How do i explain to them that breezes are better than stagnant, hot air?
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