Small fans are necessary for us in a variety of situations - in the car, in the office, on vacation. With their invention, mankind began to live more comfortably. They produce and sell them with great success, even taking into account the fact that we live in the age of high technologies, when the air conditioning in the car and the house is not uncommon. About what mini-fans are like and what are their features - let's talk about this article.
Mini USB fans
USB fans can be of several types - desktop , on a flexible leg and on a clothes clip. The principle of operation of any of them - powered by the USB port of a computer or laptop. The required voltage is only 5 V, they consume very little current, while they blow well and bring relief in hot weather.
Today they are the most sold gadgets along with USB-lamps. They save energy well and provide invaluable assistance in a variety of situations. For example, fans on a flexible leg can be used to cool the laptop, since the air flow can be directed in any direction.
Mini fan on battery
Another type of mini-fans - battery chargers, working, as you might guess, from a battery or battery. They are absolutely not attached to the power grid, or to computer devices. Full mobility allows you to take a desktop mini-fan on batteries on any trip - by car, train, bus and enjoy the cool even on the beach, even in transport.
Portable devices of this type are very convenient and functional. Recently they are performed in an interesting design, their cost is low, so it's very simple to become the owner of such a convenient device.
Mini fan on batteries and a clothes clip can be installed in the car, and it will give a little coolness on a sultry day. But it has soft and safe blades, so that with accidental overturning nothing threatens your health.
Bezlopastnoy mini-fan
And although the very word fan is strongly associated with the blades, they happen to be without them. The first time with the operation of such a gadget is quite difficult to understand where the air comes from and what is the principle of its operation. There is a ring on his desk and air blows from one side of it.
In fact, everything is quite simple: air draws in the fan stand and distributes it around the ring, creating a low-pressure zone, thereby tightening the air on one side of the ring. On the other hand, this air in the form of a stream emerges from a slot located along the radius of the ring. At what a gap this is so thin that it at first sight can not be seen.
Such an aggregate works almost silently, but it's worth a lot. It has not only a round shape, at times such mini-fans are executed in the form of an oval or any curved figure.
The main advantage of this fan is its absolute safety. There are no blades - there is no chance to get into them with your finger and other parts of your body and objects. Accordingly, we can speak of a complete absence
In addition, in the process of working such a mini-fan does not create a vibration that brings discomfort. And it does not contribute to drafts, which has a beneficial effect on health. The airflow coming from the safe bezlopastny fan is very soft, which is much more pleasant than the chilling cold of the air conditioner.
Additional advantages of such devices are the ability to adjust power and tilt, ease of cleaning, interesting design, absolute safety and environmental friendliness. The room where such a fan works is pleasant and comfortable.