As far as I know, the frequency bands of 4G are 1880-1900mhz, 2320-2370mhz and 2575-2635mhz .
The frequency of 5G will be 3400-3500mhz and 3500-3600mhz.
And the shielding efficiency of this fabric is ≥ 50db at 0.1MHZ-30GHZ.
50 db = 99.99%.
The world of the future is full of high-tech enterprises, which means that wherever people go, they will contact with electromagnetic radiation.
You know this kind of electromagnetic radiation will bringing harmless on the brain and the immune system to the human body. and this damage is invisible, it can’t be seen with naked eyes.
In the future, radiation protection products will be a good products for people's health
Silver fabric made of EMF shielding clothes categories