The shielding effectiveness of HNSHWH textile products has been tested and approved by approved institutions. This product's 35% metal-blend fabric (without lead) has a shielding effectiveness of up to 30-35 dB from 10 MHz to 3 GHz and higher. This suit reduces the risk of daily radio frequency radiation. It blocks extra radio frequency radiation, but it does not completely stop the cell phone signal. For completely shielding the mobile phone signal, HNSHWH products made of 100% silver fiber blended fabric are recommended.
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