Inside this box is a vehicle fan with dual propellers.
It is sold by Punasi, and there are two variants of the same product. The only difference is the included mount. This particular model is designed for the passenger in the back seat of a car, which is why it attaches to the headrest of the front seat. However, if you need a fan for the front seat, you can opt for the same model but with a suction cup mount, allowing you to attach it to the windscreen.
Aside from the mount, the product is identical. It offers a lot of freedom in terms of orientation and is powered by USB. The specifications indicate that it requires a 2-amp power supply and runs at 5 volts, which is a standard USB voltage. This setup supposedly delivers 10 watts of power. However, I have serious doubts about this claim, as USB fans generally consume far less power—potentially ten times less.
Inside the box, everything is well-packed to survive shipping. The contents include the fan and the mount, which in this case is the headrest mount. Assembly is straightforward. The mount has a ball joint, and there was a piece of adhesive tape attached to it, which I had to remove. To assemble, you unscrew the nut on the fan, place the ball of the mount through it, and then screw the nut back onto the fan. It’s important to screw everything evenly, as the nut has an offset, and I had to redo it to ensure proper alignment.
The headrest mount has an adjustable clamp designed to attach to the metal bars that hold the headrest to the seat. However, you are not limited to a car seat—you can mount this fan on any pole of a suitable diameter. The included USB cable is over 1.7 meters long, ending in a standard USB plug. You can power the fan using any USB source, including a computer, console, TV, monitor, or power bank. Out of curiosity, I even tried plugging it into my smartphone, and it worked.
Unfortunately, my unit had an issue: one of the fans was blowing air in the wrong direction. Upon inspection, I discovered that the manufacturer had incorrectly wired the motor. Typically, any marker dot on a motor indicates the positive terminal, but in this case, the assembler confused a black marking with the black wire, which should be negative. As a result, the polarity was reversed. The motors appear to be brushed rather than brushless. To fix the issue, I simply unsoldered the wires, swapped them, and resoldered them. After this fix, both fans blew air in the correct direction.
The fan features three speed modes, controlled by a single button located between the two propellers. When plugged into a power source, the fan remains off until you press the button. A small LED indicator glows blue at all times, regardless of speed. The three speed settings are low, medium, and high, but I could hardly tell the difference between medium and high, even when using a sufficiently powerful 2-amp USB supply as recommended in the manual.
One concern is the noise level. Here’s an example of all the modes:
[Music]
As you can hear, the fans are quite noisy. Otherwise, the product is well-made. The plastic does not feel too cheap, and I especially appreciate how the propellers are encased in a protective cage, preventing accidental contact with the blades. Although this fan is intended for vehicle use, particularly for keeping pets cool, I plan to use it next to my computer. My monitor lamp has a suitable diameter for clamping the mount, and once I connect the fan to my monitor’s USB port, I can finally stay cool during intense gaming sessions.