EMF safe heating pads

Does anyone have any experience with heating pads that are EMF safe? I've read about far infrared heating pads and the jade stone version is advertised as being emf safe. On the other hand, I read about Venture far infrared heating pads with heating elements made of micro carbon fiber. Venture doesn't lay any claim as to being EMF safe but they look way more comfortable as they are lined in fleece and more lightweight than the jade stone version. Has anyone tried either of these?

I hope someone comes with an answer for you.

I only used to use those blankets to heat the bed (in Japan, everybody uses them).
I was not very ES then (mobile phones were just starting back then).

But after some time, I stopped using them, even if I liked the heat.
Something felt 'not right'.

Today, I would never use them again... I use hot bottles instead!