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I will teach you how to test radiation-proof clothing. Nowadays, electronic technology products have penetrated every aspect of people’s daily lives and work. While these technologies bring convenience to our lives, they also generate electromagnetic radiation. In recent years, radiation-proof clothing has gained the favor of many expectant mothers. So, how can we simply test whether a radiation protection suit is effective? After consulting experts in the field of consumer goods at PONY Speek Test, the author learned that the working principle of radiation-proof clothing is to use the loops formed by metal fibers within the clothing to generate induced currents, which in turn create a reverse electromagnetic field for shielding purposes. Under normal circumstances, good metal conductors can reflect electromagnetic waves; that is, when the aperture size of the metal mesh is less than 1/4 of the wavelength of the electromagnetic wave (wavelength = speed of light/frequency), electromagnetic waves cannot pass through such a mesh, thereby enabling it to shield pregnant women from electromagnetic radiation. Next, the author will introduce several methods for checking whether radiation-proof clothing is effective. Method 1: Take a small piece of fabric from regular clothing and from radiation-proof clothing respectively, and burn it. After complete burning, the regular clothing will turn to ashes, while the radiation-proof clothing usually leaves behind a blackened metal mesh or blackened balls. Method 2: Ordinary clothes do not have electrical conductivity, but radiation-proof clothing does. A multimeter or other instrument can be used to compare the difference in electrical conductivity between ordinary clothes and radiation-blocking clothing. Method 3: When electromagnetic radiations interact with each other, a \"buzzing\" noise is produced. Turn on the speaker, or set the landline on speakerphone, cover the phone with a radiation-proof garment and make the call to listen for any noise, in order to determine whether it is effective. In daily life, consumers can try the above three methods to roughly determine whether radiation-blocking clothing is effective. To more accurately determine the shielding effectiveness of radiation protection clothing, it is necessary to rely on professional institutions for testing.