When this is the case, it is usually a good idea to block off that room and only use it for storage purposes. Sometimes, the source of a high magnetic field is incorrect wiring. If you suspect that your home is wired improperly, obtain the services of a licensed electrician. If you need to disconnect electrical circuits to determine the source of magnetic fields, you should call a licensed electrician. Computers Computers are a complicated subject.
EMFs radiate from all sides of the computer.
Thus, you must not only be concerned with sitting in front of the monitor but also if you are sitting near a computer or if a computer is operating in a nearby room. Many US manufactured computers have EMFs of 5 - 100 mG at this distance. Not even a lead screen will block ELF and VLF magnetic fields. Space does not permit a more thorough discussion of computers. If you use a computer, it is important that you measure your EMF exposure with a Gauss meter and review the literature concerning the health impacts of computer use.