The Dyson Air Multiplier fan works very differently to conventional fans. It uses Air Multiplier technology to draw in air and amplify it 15 times. With no blades or grille, it's safe, easy to clean and doesn't cause unpleasant buffeting
. 
How it works
Air is accelerated through an annular aperture and over a 16 degree airfoil-shaped ramp, generating an uninterrupted stream of smooth air.

Air Multiplier technology
Using an airfoil-shaped ramp (like a cross-section through an airplane wing), airflow is amplified 15 times. This creates a smooth, powerful airflow, with no need for fast-spinning blades.

Other advantages
No blades means the Dyson Air Multiplier fan is safe and easy to clean. It also has touch-tilt, 90 degree oscillation and dimmer-switch power control
.