How do fans keep us cool?

In summer, a popular way to get cool is to turn on a fan, but how do these inventions create a blast of wind to stop us from overheating? Well, we can thank oxygen for that. There is wind everywhere, even in our houses, and what a fan does us simply blow that forward. The blades move these gusts into your direction, cooling them down as it does, and that is how a fan works.