Why Bladeless Fans Are a Lie

Bladeless fans, despite their name, contain hidden blades in the base that push air upwards. The air is directed through a ring, creating a low-pressure zone that draws in surrounding air, a process known as inducement. Additionally, entrainment occurs as the air stream pulls in more air, making the fan highly efficient. The bladeless design is more about aesthetics and safety, as the actual mechanics involve conventional fan principles.

Describe the process of entrainment in the context of a bladeless fan.

How does a bladeless fan manage to blow more air than it takes in?