Hair dryer is a kind of dry hair tool that we often use every day, but how big is the harm of hair dryer? Recently, there is a saying among the crowd that the hair dryer is a high radiation killer. The amount of radiation accumulated using the household hair dryer three times in a row is equal to the amount of radiation from the hospital in one X-ray. And the hair dryer is more lethal than the mobile phone. So, does the hair dryer have radiation ? The following small series will explain to you.
Does the hair dryer have radiation?
Through testing, the turntables placed by the hair dryer are set to four angles of 0°, 90°, 180°, and 270°, and the antenna heights of the hair dryers are set to four heights of 100 cm, 200 cm, 300 cm, and 400 cm, respectively. The direction of the antenna is divided into vertical and horizontal. In this way, a total of 32 states such as 0°, 100cm, vertical, 0°, 200cm, and vertical can be combined.
In these 32 states, they let the radiation receiving machine (referred to as the receiver) scan the hair dryer while recording the angle of the turntable, the height and direction of the antenna at the maximum.
Finally, based on the pre-test data, six typical states were selected for final testing. For example, according to the maximum value of the pre-test record (for example, the angle of the turntable is 90°, the height of the antenna is 200 cm, and the vertical direction of the antenna), the radiation value of the hair dryer is automatically calculated.
By doing this experiment in the shielding space, Ni Jianping found that the closer the hair dryer is to the antenna, the stronger the field strength and the stronger the radiation. In addition, they believe that the space radiation of the hair dryer may be caused by a DC motor brush.
Ni Jianping said that in fact, regardless of the size of the household appliances, whether it is a computer, a TV, or a microwave oven, as long as it is related to electricity, it will radiate electromagnetic fields more or less when used. As a member of the hair dryer, nature is no exception.
The test data shows that the general 1000W hair dryer has a radiation value of about 350mG (mG: millis is the unit of magnetic field strength), while the TV and computer monitors have radiation values ​​of about 45mG and 100mG, respectively, which are far lower than electricity. The amount of radiation that is blown. This is because when using a hair dryer, the magnetic field may be larger because of its high power and large current.
However, it is different from the radiation from the X-rays used in medical treatment. The radiation of the hair dryer belongs to electromagnetic radiation, and the X-ray used for medical treatment is an ionizing radiation. The types of the two are different and there is no way to compare them.
In addition, the radiation of hair dryers and mobile phones, computers, microwave ovens, etc. are also different. Such as mobile phones, microwave ovens, computer cases and other electromagnetic fields belonging to radio frequency, electromagnetic field energy is relatively large, posing a great threat to the human body.
The hair dryer belongs to the low-frequency electromagnetic field and does not have the heating effect of the radio frequency electromagnetic field. The main threat to human health is that the low-frequency electric field and the low-frequency magnetic field will generate or induce current in the human body. If the current is large enough, Stimulates nerves and muscles. However, in order to generate such stimulation, the energy of the electromagnetic field itself must be large enough, and the household hair dryer can never reach such a "level", so you can rest assured when using it.
The above is a small series about the radiation of the hair dryer for everyone to explain, I hope to be able to help everyone, with more information, so stay tuned to GO Jiaju.com.
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