Fans Without Blades Known as Air Multiplier

Dyson "Air Multipliers" are essentially fans but without the blades.

Conventional fans use spinning blades to generate a stream of air or breeze to cool you off on a hot day. But blades chop the air and causes unpleasant buffeting in the air. The Dyson fans also generates a breeze, but since it doesn't have blades, you get a smooth flow of air without the buffeting.

The air multipliers can tilt and swivel like conventional fans and there is a speed adjustment knob as well.

Without blades, it doesn't need a grill to protect kids from sticking their hands into the fan. You can stick your hand right through its opening without effect. It is perfectly safe. This makes it one of the safest fans around.

It is easy to clean, just wipe the annular ring. Imagine how you would have to clean the blades of a fan.

It uses airfoil technology in an annular aperture ring and creates negative air pressure to pull air through. The motor which is inside the stand pulls air through the amplification ring and amplifies the air from 15 to 18 times producing a breeze.

You can see an animation of how it works here.

Watch video of industrial designer Sir James Dyson explain how the technology works using a cross-sectional view of a real Dyson fan.

The fan multiplies air in three ways: (1) airplane shape foil, (2) expanding cone, and (3) viscous shearing.

Article written in August 2010.  Author does not own product, but have seen it in action and have stuck hand into annular ring.  Author may receive compensation from Google and Amazon ads and links contained in article.