Power consumption of Dyson Air Multiplier (AM01)

A few weeks ago I got a Dyson Air Multiplier (AM01) for my desk at work. My brother Rob asked me about the power consumption, and I got a chance to measure it. However, since I couldn’t find any real data about it online I figured I’d fix that and write it here rather than in email…

Measured using a Kill-a-watt at 120.5V:

  • Lowest setting: 2-3W
  • Medium setting1: 13-14W
  • Highest setting: 31W
  • Oscillation enabled: +2W

Not bad actually!

1 Since the Dyson is infinitely adjustable, I had to guess at a “medium” position by feel. It’s adjustable in about 1W increments all the way from the lowest to the highest setting.

6 thoughts on “Power consumption of Dyson Air Multiplier (AM01)

  1. The one with the heater element in it caused my Electric Bill to go through the roof. We are talking about an average bill of $60 per month went to $250. I put it inside my bedroom that has always been cold. It kept it nice and toasty but my wife kept it running during the day too. But it’s way too expensive. I’m looking for other options now and I’m bringing the Dyson into work so my boss gets the bills instead of me.. ;)

    • Alex:

      I should think that this has nothing to do with the Dyson per se. The heater model (AM05) is a 1500 watt appliance, so some simple math will tell you that if you ran it continuously for a 30 day month at the current PG&E rates (since you seem to be in the Bay Area) it will cost you anywhere from $142 per month (at the lowest cost $0.13230/kWh) to $387 per month (at the highest cost $0.35916/kWh). It would cost $211 per month at the “average” rate of $0.19604/kWh.

      So it seems like you actually just learned a math lesson about space heaters, which are all about 1500 watts. ;-)

  2. Dyson’s website says nothing about power consumption, so it’s really nice to see you have this posted. Can you get a AM02 and add that to this page? I’m only interested in the fan motor itself without oscillation or the AM05 heater. I’ve been wondering how useful the fan base would be for a shop dust collector. Thanks!

  3. Thanks for the data. However, I could not make a grasp of how acceptable is the air delivered with respect to each setting. Could you illustrate, perhaps using a piece of paper (preferably via recording), the wind strength for each setting?

  4. I purchased an used AM-01 for experimenting with. The motor that runs the oscillation mode is burnt out, but the main motor for the fan works just fine. My unit was also missing the upper air manifold, so I don’t get to try out the multiplication effect. But when connected to some light-weight aluminum ducting, this seems to be a lot quieter than any other blower I tried. So I tor the base unit apart to see what’s wrong with the oscillating motor, and to see what Dyson is doing inside there. Lots of engineering has gone into this thing! I can see why these fans cost so much, Dyson has spent a lot of effort on getting the fan to run quieter. I see the fan motor itself is absolutely clean, no dust has gotten into it even after however many hours of usege it would take to wear out an oscillating motor! The fan motor is air-cooled and uses a small portion of the main airflow. This cooling air is run through an internal filter and there’s a screen of holes just before that filter that I suspect might also act as a damping device to help muffle any noise coming off of the main rotor. The main air intake, where room air is pulled into the unit should have been designed for cleaning. I would like to have seen a tray you could pull out with a reusable flat foam filter like what any typical cyclone vacuum cleaner would use. But I suspect Dyson is a stubborn place to work at, and common sense will always take second place to a very limited design criteria. I found thew entire air passage system to have a coating of fine dust with some fine pet hair accumulated at the beginning. Only the motor itself had adequate filtering, and that would have been helped by all the pre-filtering that takes place. The outer screen of holes where room air first enters, is a filter of sorts. And if the Dyson paperwork doesn’t say so, I would recommend wiping those holes with a damp rag while the unit is turned off so that dust doesn’t get pulled inwards any more than necessary. It’s really too bad Dyson couldn’t include a better filtering system. I’ll wrap a foam filter around the outside of the fan housing, using K&N filter oil. I can buy bulk filter foam online and cut it down to fit. A 19 inch long strip about 2 inches wide should do it just fine, just hotglue the ends together

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