Fostac MAXiiMUS mains and electro smog harmoniser is an interesting device, that can saves up to 30% of energy and clears the electro smog:
The Fostac-Maximus’ interior consists of copper-cores, which are wrapped with silicon-dioxide fibre glass tissue and additionally enclosed in a bromine alloyed glass casing. This system is meant to work like an antenna, which feeds the gained electrons into the joined circuit and thus, saves on electricity from the grid. The device produces alternative energy on the highest level, drawing on the constant flow of electrons within nature, which results from the natural tension between ionosphere and the earth. It reduces the use of energy, increases the energy yield (…), harmonises electric smog and heightens the quality of life.
Complete description link: here
Avalibale at Kemp Elektroniks: http://www.kempelektroniks.nl/en/185/kemp-elektroniks