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Description: This DC Blower really moves some air! Pulling about 1Amp @ 12VDC, this blower is rated at 16CFM (although it seems like more to us). We’ve used this blower to build small hovercrafts and to cool off on a hot day, they’re also handy for inflating “transforming” e-textiles garments!


  • Rated Voltage: 6-12VDC
  • Rated Current: 1Amp
  • Rated Airflow: 16CFM
  • Rated Power: 10W
  • Outlet Diameter: 33mm
  • Fan Speed: 3000-3500rpm

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Customer Comments

  • I have to tell you something…

    This blows.

  • Where is the ruler picture?

    • Yes its a little tough trying to extrapolate from just knowing the outlet 33mm.

    • Outlet: 33mm. In the middle picture, from the flat part with the black nub straight over is about 105mm. That should give you some idea for the size.

  • This would make a good fume blower for soldering.

    • Good idea, I need one of those. I’m using this now.

      • Ok, so I tried using this as a fume blower a few weeks ago, and it sort of worked. The problem is that when you are working with SMD parts this thing will very easily blow them out from under you while you are trying to solder them in place. For that reason, I don’t suggest using this while assembling boards with SMD parts. Through hole parts are probably heavy enough to resist the gust, though.

        • You might try running it on 5V instead of 12, it will turn more slowly and not blast as much air.

          • Good point. I had a 9V laying around, so that’s what I tried, but next time I’ll try 5V. Awesome little $5 fan regardless.

        • What about a piece over the output of the blower that is almost like a shower head or something, where it breaks up the airflow over a larger space. Less focused, but still gets the fumes.

        • What about having the fan suck up the fumes.

          • Worth a shot! However, since the fan doesn’t have a single intake (the entire side is where the air flows in), it would have to be really close to the iron to be effective. Might get in the way

      • Just bought one for the purpose of fume blowing. I’ll let you know how it works when I set it.

  • Could the motor be used as a generator?

  • you might be able to make a small hover craft using four of the blowers as the engines and having balloons on the side to make the hover craft float I’m going to try this let me know if you figure it out good luck!

  • What hose can I use to attach to the blower? I see 1-½" Sump Pump hose for sale at Home Depot. I think it’s 1-¼" ID.

    • The Sump Pump hose was too big.

      I think I found the perfect hose to use: It’s a bit pricey at $3.00/ft., but it’s the cheapest I have been able to find.

      I’m going to order 25ft. of 1-¼" hose and see how it works.

  • For anyone interested in getting a general idea of how large this thing is, watch the part of the video where Robert is holding it: It’s a pretty good size, but it’s not huge.

  • Where are the squirrels?

  • Has anyone loaded it with a power supply of 12+ volts at 1+ amps? Considering using this for a cool quadcopter type project (4 in a square) but my current blower (this) isn’t as powerful on 12VDC so might try a power input of a little higher…


  • they are the greatest things since sliced bread

  • do not expect much from a $4.95 blower. I purchased 10 to test. 5 went up in smoke at initial power. 5 ran fine but after 10 min the next one went up in smoke. after 3 hr. run time the next one went up in smoke. All went up in smoke on the initial start up. buyer be aware

  • I need some technical data,

    Somebody knows the static pressure what this system can maintain ? ( Inch-H2O )


  • I am underwhelmed. I found the fan to be rather noisy and anemic. I do not understand how you guys managed to make a hovercraft with these fans. Perhaps careful attention to the skirt/surface tolerances and over-driving the fans would do it. I had hoped to improve combustion in my fireplace by forcing air through a 1" copper pipe above the fire, and then down to exhaust through multiple holes at the bottom edges of the fire. I don’t think these fans will do the job. I should not be surprised; 10 watts (800 mA at 12 V) is not much power. I am considering a ducted fan “jet” engine for RC airplanes. Unfortunately, they are quite pricey. These blowers may find a use animating the thin filmy skirts of ghosts and ghoul decorations on Halloween.

    • Interesting that your plans for this fan were so similar to mine… I am building a double barrel meat smoker and have constructed a “manifold” of sorts from 1" black iron pipe tee-d into two ¾" pipes with holes drilled along their length. This is inserted into the lower barrel, bringing the pipe out the end of the barrel. I intend to seal up the combustion chamber very well so the ONLY combustion air available to the firewood is what I pump through the manifold apparatus so that I can closely control temperatures in the upper barrel or smoke chamber using an Arduino as a PID controller, taking inputs from thermocouple and thermister inputs. I intend to drive the fan forcing the air through the manifold using a 12 v system with variable speeds using a PWM control by the Arduino through a Darlington transister circuit.

      Unfortunately, I did not encounter your comment until now – after I’ve already ordered this fan. Luckily, the 5 dollar loss won’t be a huge burden on me ;). I like your idea of using a ducted fan for RC jet plane… I do happen to have some speed controllers for some RC projects laying around. I’ll have to research if I can send usable PWM info from an Arduino to an RC speed controller…

  • Now, since mine arrived today, it occurred to me that this would be nice if it was waterproof. So my question is: Is it waterproof and if not, how can I waterproof it?

    • There are many ways to make things waterproof. It depends on where the water is leaking. If it’s just in the seem on the cover, you could tighten it, and put maybe some hot glue on the seem, or maybe even petroleum jelly I believe?

  • Sparkfun, I’d like to know the air pressure, small as it may be, in cm of water… thanks

  • dimentions?

  • I want to use this as a blower in my desktop CNC to blow plastic/wood chips off my parts. If I nozzled this guy down to say, ¼" outlet, do you think i would have enough pressure?

  • I went through and measured the screw hole pattern and made a drawing of the positions. I also made a drawing of the outer profile (slightly inset from the profile of the device). I used 8-32 screws to mount it, but I think M4 screws should work as well. I made a 3D FDM part using these dimensions and verified it fit. Take a look:

    screw dimensions

    other dimensions

    If you do an inlet on the intake side, use a filleted inlet with a radius of at least .2*Diameter (12mm), as this design will produce the lowest entrance loss.

  • Am I the only one bothered by this “Squirrel Cage” terminology? C'mon, Sparkfun - you’re better than this. How about “impeller blower fan” or “ducted centrifugal blower fan”? :)

    • that’s the colloquial term for fans of this configuration (of any size, and they do get very, very large) but the technical term is, i believe, centrifugal blower.

  • Anyone know how much thrust one of these puts out? I.e. can it lift it’s own weight?

  • Have you tried supplying it by the reverse polarity? I think you can use it as a sucker :)

    • I have a feeling this is your run-of-the-mill brushless fan motor. If it is, DO NOT do this, ICs and reverse polarity don’t do well together.

  • Hmmm… where are those NATO gas mask connectors, I have an idea…

  • Datasheet? Usually the manufacturer will graph airflow versus back pressure (and/or voltage) so you know how much pressure the fan can sustain at 0 cfm. That’s usually the relevant figure of merit for hovercraft-type applications.

  • Ok… Not sure if you’ll be able to answer this one, but any idea what sort of noise this thing puts out at various voltage levels?

    • It’s not very loud.

    • TB, take a look at the product video…

      He runs it at 6v, 12v, and even ~15v. You can hear quite a difference there… on the video, 6v is practically silent, 12v not so much.

  • Interesting! I’m wondering if this can be used (with suitable Arduino project, of course) to regulate the airflow into a charcoal smoker to control the temperature. It would need some suitable mounting hardware, but this is a great value. Most of the custom-built blowers I’ve seen for smokers run in the $50-$60 range. The big question: what’s the best way to control the blower? on/off, PWM, some kind of DAC?

    • It’s better to use PWM and a temperature sensor. PWM is better than a DAC because less heat is dissipated through the transistor that is going to control the blower. As for the temperature sensor, I recommend you to use a thermocouple and an appropriate chip to receive these values. I think there’s an Arduino example for that. (I even found a shield on a quick google search). Inside the chip you will basically compare the set temperature against the measured temperature and adjust the motor until the readings are the same. You have to do something to slow down the motor response, so that it doesn’t en up turning all the way on or off like a clothes iron.

    • CrazyP, at that price, it is certainly worth a shot. I have a smoker contraption that works with a similarly sized fan. You will probably want either a PID or a PID algorithm for your micro controller to pulse relay.

Customer Reviews

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1 of 1 found this helpful:

They work, but not very powerful

We bought four of these to inflate a couple of Halloween costumes. Two were not powerful enough to keep a costume made from parachute ripstop nylon that measured about 7.5 cubic feet inflated. We tested the costumes with a shop vac, and they inflated just fine, so we thought that 16 cfm would be enough for mobile use. Sadly, not sure they put out that much air.

We will most likely use these for other projects.