see also :
http://es-forum.com/Advice-on-EMF-RF-Equiptment-td4035005.html#a4035067the device emits a high magnetic field , even more so between 2 kHz and 100 kHz.
in the linked video dated feb 19 2020 it is tested under 2 kHz but still shows a strong field.
update : correction : it was tested with a MB3830B, not the MB3030B i thought, so from 16 Hz upto 100 MHz.
but Merializer has measured it more precise, between 2 kHz and 100 kHz which is more troublesome.
i took a quick look in the 9CI youtube channel.
these tests seem bullshit, clearly not independent, frequencies unknown except 2.4 GHz, output and readings not shown together.