In today's world, we can not do without household appliances. They are designed to make our life comfortable and easier. Many of these "helping" tools do not change for several decades.
The same can be said about conventional fans. However, the world of modern household appliances is actively developing. In 2009, inventor James Dyson invented a fan without blades, which he called Dyson Air Multiplier.
Its construction consists of a vertical stand, inside which there is an electric motor. On the stand is placed an aerodynamic ring, which can have a different shape (circle, heart, oval, diamond, etc.). On the aerodynamic ring there is a special section with holes.
How does the fanless fan work?
If you are going to purchase a bezlopastnoy fan, then for sure you will be interested to find out what its principle of work. It uses the technology of "air multiplier", as a result of which the drawn air is amplified 15-18 times.
The device of the bezlopastnogo fan consists in the fact that the electric motor inside the stand starts to rotate at a speed of 140,000 rpm. The air is then pulled through a narrow outer slit, which is located on the body of the aerodynamic ring. Through another gap, air is pushed out at a speed of about 90 kilometers per hour.
Pros and cons of the bezlopastnogo fan
Like any modern device the bezlopastnoy fan has a number of advantages:
- fast assembly;
- safety of use;
- economy;
- constant and smooth flow of air;
- presence of remote control panel;
- LED lighting, which is available in most models, is able to replace a night light;
- built-in function of automatic fan rotation;
- the possibility of adjusting the speed of airflow with a rheostat;
- The brushes located in the inner part of the fan case are made of a magnetic alloy, which excludes the accumulation of coal dust;
- original design.
It is easy to care for such a fan: it is enough to wipe the inside of the aerodynamic ring periodically with a damp cloth.
There are flawless fan and flaws:
- high price;
- strong noise due to the rheostat.
Types of bezlopastnyh fans
There are two types:
- floor;
- desktop.
Floorless bezlopastnoy fan
To cool a large area, a more powerful fan may be required. In this case, pay attention to the floor fan without blades. The peculiarity of this model of the fan is that it is able not only to cool the air, but also to heat it, that is, to perform the function of the heater .
And since there are no blades in its design, this fan model is absolutely safe. This is especially important if you need to put a fan in the children's room . In this case, you can not worry about the child accidentally injuring himself.
Benchless beater fan
Due to its compact dimensions, an endless fan can be placed on your desk. Thus, it will create a comfortable environment near your workplace.
If you accidentally dropped a fan without blades on the floor, then there's nothing to worry about: it will work in the same mode. A rugged case, made of impact-resistant plastic, is capable of withstanding any impacts and falls.
If you need to purchase a fan, you should pay attention to the model without blades. Ease of operation, convenience and safety of use, the presence of a constant flow of air, which can be regulated - these are the indicators for which you can forgive the bezlopastnomu fan so high on it.