Looking at the device, you wouldn’t expect to feel a breeze coming from the mounted circle. There are no moving parts in sight. But if the fan is switched on, you’ll feel air blowing through the tube. How does it work? How can an open circle push air into a breeze without fan blades?
BladeLess Fan-How to Make it
Despite the safety measures that all fans have that are now standard, still, you may be interested to know that there are alternative fans, without blades, that function very well and are easy to build.
In this video, we see the process of building one of these fans without blades ,from start to the finish! Thereby, creating a small fan without blades that nevertheless, produces a huge jet of air due to a physical phenomenon called the “Venturi Effect”.