Meanwhile, The FTC states there is no scientific proof that anti-radiation "shields" significantly reduce exposure from EMF emissions because the entire phone emits electromagnetic waves.

Are EMF neutralizers effective?

The ads and websites often claim to have scientific evidence that their radiation shields work, but the Federal Trade Commission reports that there is no scientific proof that these products reduce exposure to electromagnetic radiation, and warn that these products may actually increase the radiation the phones emit.

What material can block EMF?

Typical materials used for electromagnetic shielding include sheet metal, metal screen, and metal foam. Common sheet metals for shielding include copper, brass, nickel, silver, steel, and tin.