I bought a bladeless fan from Taobao, China's auction site, like eBay. I think the site name literally means "search/find treasure". There are many shops selling similar items here, and it's hard to find a reliable one. I chose this because this shop had videos of a person standing on the ring and dropping the motor, and the fan still worked. Oh when I went to Shenzhen there were lots of shops selling these fans as well.
The supposed advantages of this fan are, in order of importance to me:
- easy to clean
- efficient/brushless motor
- low centre of gravity
- no buffeting
- continuous power control
- small footprint (added by me)
I didn't think much of its safety at first, since I don't tend to stick things into fans. However I've found it's more useful than I thought, especially with things like curtains, which my old fan used to suck in. I used this with a mosquito net and could place the fan anywhere without risking it entangling. Another advantage is since the intake is all around the base, it's difficult to block.
Another nice advantage is efficiency, if the fan induces more wind than the motor alone produces, it should be more energy efficient than other fans. This needs to be tested though, as I'm sure it uses some energy squeezing the air through a tiny gap. I'm not sure if this has a brushless motor as advertised.
Having the fan pivot about its centre of gravity sounds nice, but the movement is very stiff, and it can't be adjusted with 1 hand. Its tilt is also very little compared to normal fans. I've tried the Air Multiplier and it's not easy to tilt either.
Buffeting seems like something they came up with just for marketing. I've never noticed it before, and I'm not sure I can feel it, even when looking for it.
Stuff to do:
- make cyclonic air purifier
- blow smells
I had a chance to have a look at a real Air Multiplier:
- it's more powerful and quiet
- the base pivots more smoothly, but still can't be adjusted with 1 finger
- also hollow near the air intake