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anti-electromagnetic radiation 100% silver fiber knitted hat Mobile phone, computer, TV, EMF shielding sleep cap
anti-electromagnetic radiation 100% silver fiber knitted hat Mobile phone, computer, TV, EMF shielding sleep cap
anti-electromagnetic radiation 100% silver fiber knitted hat Mobile phone, computer, TV, EMF shielding sleep cap
anti-electromagnetic radiation 100% silver fiber knitted hat Mobile phone, computer, TV, EMF shielding sleep cap
anti-electromagnetic radiation 100% silver fiber knitted hat Mobile phone, computer, TV, EMF shielding sleep cap
anti-electromagnetic radiation 100% silver fiber knitted hat Mobile phone, computer, TV, EMF shielding sleep cap
anti-electromagnetic radiation 100% silver fiber knitted hat Mobile phone, computer, TV, EMF shielding sleep cap
anti-electromagnetic radiation 100% silver fiber knitted hat Mobile phone, computer, TV, EMF shielding sleep cap
anti-electromagnetic radiation 100% silver fiber knitted hat Mobile phone, computer, TV, EMF shielding sleep cap
anti-electromagnetic radiation 100% silver fiber knitted hat Mobile phone, computer, TV, EMF shielding sleep cap
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anti-electromagnetic radiation 100% silver fiber knitted hat Mobile phone, computer, TV, EMF shielding sleep cap
anti-electromagnetic radiation 100% silver fiber knitted hat Mobile phone, computer, TV, EMF shielding sleep cap
anti-electromagnetic radiation 100% silver fiber knitted hat Mobile phone, computer, TV, EMF shielding sleep cap
anti-electromagnetic radiation 100% silver fiber knitted hat Mobile phone, computer, TV, EMF shielding sleep cap
anti-electromagnetic radiation 100% silver fiber knitted hat Mobile phone, computer, TV, EMF shielding sleep cap
anti-electromagnetic radiation 100% silver fiber knitted hat Mobile phone, computer, TV, EMF shielding sleep cap
anti-electromagnetic radiation 100% silver fiber knitted hat Mobile phone, computer, TV, EMF shielding sleep cap
anti-electromagnetic radiation 100% silver fiber knitted hat Mobile phone, computer, TV, EMF shielding sleep cap
anti-electromagnetic radiation 100% silver fiber knitted hat Mobile phone, computer, TV, EMF shielding sleep cap
anti-electromagnetic radiation 100% silver fiber knitted hat Mobile phone, computer, TV, EMF shielding sleep cap
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anti-electromagnetic radiation 100% silver fiber knitted hat Mobile phone, computer, TV, EMF shielding sleep cap

$79.97
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Color
Size
Qty 999 in stock
Feature : Multifunction
Applicable Scene : Casual
Applicable Season : Four Seasons
Model Number : 10064
Pattern Type : Solid
Gender : Unisex
Department Name : Adult
Material : COTTON
Brand Name : ajiacn
Origin : Mainland China
CN : Anhui
Item Type : Skullies & Beanies
Product name : EMF shielding knitted hat
Function : EMF shielding
100% silver fiber fabric composition : 100% silver fiber
Product weight : 0.1 kg
Size : Free size
Color : Gray, Black

What is electromagnetic radiation?

Electromagnetic radiation is "non-ionizing radiation," including microwaves and electromagnetic fields (EMF). Any type of electrical appliance produces non-ionizing radiation, including cell phones, computers, televisions, wires, and ultrasound.


Hazards of electromagnetic radiation:

Electromagnetic wave radiation has been listed by WHO as the fourth largest source of environmental pollution after water, atmosphere and noise. It has become an invisible “killer” that harms human health. Electromagnetic radiation can generate a lot of free radicals, interfere with communication between cells, and hinder hormones, the release of (such as melatonin) causes cancer, leukemia, cardiovascular and cerebrovascular diseases, miscarriage, menstrual disorders, sexual decline, insomnia and neurological disorders. People who work, study, and live in a concentrated environment of radiation sources are prone to insomnia and dreams, memory loss, physical weakness, and low immunity. The growth rate of cancer cells is 24 times faster than that of normal people.


Size information

Protective knitted hat size table (unit: cm)

Size

Knitted hat height

Knitted hat width

Free size

27

28

Size Description (Unit: CM)* Pure hand measurement, there may be 1-2cm

error, is normal, please forgive me!


Electromagnetic radiation protective 100% silver fiber knitted hat

(Specific composition of outer fabric: 100% cotton; inner fabric: 100% silver fiber )
Frequency range: 9KHz-40GHz
Shielding effectiveness: 45.0dB-68.6dB

Silver fiber fabric analysis:

The silver fiber is a high-tech product obtained by permanently bonding silver to a fiber surface through a special technique. This structure not only makes the silver fiber maintain the original textile property, but also gives it all the The magical function of silver. Silver fiber radiation-proof fabric made of nanotechnology is the latest radiation-proof technology in the world after metal anti-radiation fiber cloth. It has the functions of radiation protection, anti-bacterial and anti-fouling. Its anti-radiation effect is superior to radiation-proof fabric made of other metal materials, which can be worn close to the body and beneficial to the human body. The silver fiber anti-electromagnetic radiation fabric is relatively thin, It's not suitable for making knitted hat directly, It's usually used as the lining of the knitted hat. The inner fabric of the knitted hat are silver fiber, the ring-shaped shielding network composed of silver fibers can generate induced current, which in turn generates a reverse electromagnetic field to shield radiation.

Electromagnetic radiation protection silver fiber fabrics exhibit excellent shielding performance under high-frequency electromagnetic radiation environments. The greater the shielding effectiveness value at a certain frequency point or frequency band, the better the protection effect, which is usually 30dB (equivalent to a shielding rate of 99.9%) The above is a very good effect.


Applicable to the crowd:

Electromagnetic radiation protective knitted hat can resist computer radiation, WIFI radiation, monitoring radiation, base station radiation, laboratory radiation, etc. It is an ideal protective product used in the military, banking, communications, power, schools, media, scientific research and other industries.


The maintenance method of silver fiber knitted hats:

Silver fiber exposed to the air can't avoid oxidation, the fabric will be black or yellow, is a normal phenomenon, doesn't affect the shielding effect. To reduce the oxidation of washing, It is recommended to keep the head clean when using it, if don't use, it is recommended sealed.

1. It is recommended to wash with well water, mineral water, pure water; (Reason: Some tap water contains chloride ion, and if the chloride ion is excessive, it is easy to react with silver to reduce the damage to silver by alkali and chlorine)

2. Modest amount of neutral detergent, washing for a short time; (Don't use acidic detergent or laundry detergent)

3. Can't rub and washing machine wash. Can't be bleached, after washed, can't wring it, pick up directly from the water and hang it in a ventilated and dry room, avoid exposure, don't recommend ironing;

4. It is recommended to wash it as little as possible prevent improper washing from affecting the shielding effect.


[NOTE]:Cell phone signal doesn't equal cell phone radiation

Some buyers often mistakenly believe that radiation-proof products can shield cell phone signals. In fact, the radiation from mobile phones is mainly near-field radiation, which comes from the electronic components of the phone itself, rather than from the signals emitted by the base station. So it is unscientific to test whether the radiation-proof products is radiation-proof by covering the mobile phone signal!

The electromagnetic radiation protective knitted hats are designed to protect against electromagnetic waves caused by the sudden increase or decay of electric currents in electronic components, and they do not shield against cell phone signals.


Fabric test methods:

1.Fabric combustion method:

The residue after the cloth is fully burned is network metal, These metal meshes are used to shield electromagnetic radiation, so it can be proved that the cloth can effectively shield electromagnetic radiation.(This method is only suitable for metal fiber fabric)


2.Speaker noise interference method:

Turn on the audio equipment, the mobile phone next to the audio equipment, so that another person to call the phone, this time you can usually hear the sound of "si si" noise. The reason is that when the mobile phone calls will emit electromagnetic radiation to interfere with the normal operation of the audio equipment, and then cover the audio equipment with a protective clothing completely, then dial this mobile phone, the sound of "si si" voice to eliminate or weaken. This test can prove radiation protection clothing to the shielding effect.


3.Conductivity test method:

Electromagnetic radiation protective fabrics and ordinary fabrics are essentially different. electromagnetic radiation protective fabrics are electrically conductive. When the multimeter probes touch the test fabric and the distance between the multimeter probes is 10cm, The multimeter shows a resistance value greater than 0, indicating that the fabric has conductivity and anti-radiation effect.


4.Professional radiation equipment test method:

The first step: Use an electromagnetic radiation detector to detect the radiation value of the computer screen;

The second step: Completely cover the computer screen with electromagnetic radiation protective clothing and then use an electromagnetic radiation detector to detect the radiation of the computer screen, the radiation value will decrease or become 0.