Electromagnetic radiation protective inner layer shielding cloth mobile phone bag multifunctional shielding mobile phone bag – 30

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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.

The influence of electromagnetic radiation on human health:

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, hinder hormones and 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.

The products we sell:

Electromagnetic radiation protective mobile phone bag

Electromagnetic radiation protective mobile phone bag:

Frequency range: 30MHz-40GHz

Shielding effectiveness: 44.1dB-82.7dB

Recommended use environment:

1. Computer room: shielded computer room, computer room, telecommunication center, communication equipment room, satellite ground station, recording and broadcasting room;

2. Scientific research: laboratories, test rooms, analysis rooms (anti-electromagnetic radiation interference: effectively suppress the electromagnetic wave signal interference from the surrounding working environment, and provide effective guarantee for the normal operation of the protection of electronic instruments and equipment systems)

3. Confidentiality: confidential rooms, offices, etc. (anti-information leakage: effective shielding and suppression of electromagnetic signals passing through the wall to prevent information leakage and theft)

4. Individuals: Residents near signal transmission towers and transmitting base stations (preventing high-frequency electromagnetic radiation damage: effectively shielding the high-frequency electromagnetic radiation generated by TV and radio transmission towers, mobile phone base stations, radars, etc.) to the surrounding environment to provide safety for humans,A healthy living and working environment).

5. Others: This product is widely used in internal structural parts of electronic products such as mobile phones, tablet computers, notebook computers, for example; FPC, PCB, speakers, antennas, cameras and other modules for electromagnetic wave shielding and electrostatic discharge.

The maintenance method of copper nickel fiber fine plain conductive cloth:

1. Hand wash, can be brushed with soft brush, avoid rubbing and machine washing;

2. After washing, you can’t wring it, remove it directly from the water, and keep it cool;

3. Don‘t irons;

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 anti-radiation products can shield mobile phone signals. In fact, the radiation from mobile phone 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 anti-radiation product is anti-radiation by shield mobile phone signals!

The anti-radiation products are designed to protect against electromagnetic waves caused by the sudden increase or decay of electric currents in electronic components, the ring-shaped shielding network composed of metal fibers or silver fibers can generate induced current, which in turn generates a reverse electromagnetic field to shield radiation. But they don’t 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.

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