How does the Dyson Air Multiplier/bladeless fan work? I saw a Dyson air multiplier commercial tonight and wondered this myself. Read on, or watch the video. Keep in mind that these really cool-looking works of art, these Dyson airblades are expensive and overly loud. But again, really cool-looking, eh?

Sir James Dyson explains his bladeless fan on Youtube
YouTube Preview Image

HOW THE BLADELESS FAN WORKS

Air enters the base of the unit and goes through a “mixed flow impeller” and is forced out of a slot. The slot runs around the inside of the ring-shaped fan body, across a “aircraft wing shape” and then outward into the room. In short, it sucks air in through the base and blows it out of a very thin slot in the inside of the ring-shaped upper body.

If you watch the video, Sir Dyson explains some of the “aerodynamics” involved in multiplying the airflow.

ADVANTAGES?

Well there are some… contrary to what I suspected at first. The Dyson Air Multiplier has an easy-to-clean design, dangerous moving parts are inside the base, no “buffeting” like you get from conventional fans.

DISADVANTAGES?

From the makers of the $400 and up vacuum cleaners come $300 fans (prices according to www.dyson.com 6/9/2011). The fans are “closer in noise pollution to that of an actual vacuum cleaner than a regular table fan” according to Engadget, which also added that you can’t make those cool Darth Vader voices through your Dyson bladeless. Oh, and taking a look at the Youtube above, it looks like their “mixed flow impeller” is simply a round, conical of fan-like blade thingy (sorry for the geek-speak there). Also, I’m not convinced about “buffeting” from regular fans and I’m not about to spend $300 to do a comparison.

What do you think? Sound off below!