
420 Electromagnetic Fields in Biology and Medicine
One of the challenges to research on electrosmog is the difculty in reducing exposure in a natu-
ral setting without altering other aspects of the environment. The inventions of the GS lter and the
microsurge meter provide a rare opportunity to conduct research by reducing dirty electricity in a
specic environment as no other metric changes when the lters are plugged in. The only change is
a small increase in the magnetic eld within a few centimeters of the lters.
Power line lters have been used by the electrical utilities for decades and provide one of the rst
lines of defense for impro ...