A Faraday cage or Faraday shield is an enclosure that was named after British scientist Michael Faraday, who invented it in 1836 to conduct electromagnetic and electronic experiments free from ambient electromagnetic interference.
The enclosure, or cage, which can be just small enough to work in or as large as a room or a building, is created by lining the exterior with conducting material or a conducting mesh material. The purpose of such an enclosed cage is to block external static and non-static electrical fields from entering the space.
These cages offer an EMF free zone this way - any external static electrical field causes the electric charges within the cage's conducting material to be distributed in such a way that they
cancel the field's effect in the cage's interior.
In addition to providing EMF Free Zones for electronic testing, this phenomenon is also used to protect electronic equipment from electrostatic discharge or lightening strike, and to protect consumers from unwanted EMF exposure.
These types of cages shield from external electromagnetic radiation if the conductor material is thick enough and any holes are significantly smaller than the wavelength of the radiation being emitted. However they cannot block static or slowly varying magnetic fields, such as the Earth's magnetic field (for example, a compass will still work inside the cage).
Certain computer or technology assembly procedures and electronics test procedures that require an environment that is totally free of electromagnetic interference can be carried out within what is called a cage, or screen room. These rooms are designed to be spaces that are completely enclosed by one or more layers of a fine metal mesh or perforated sheet metal. The metal layers in the ceiling and walls are grounded to dissipate any electric currents generated from external or internal electromagnetic fields; floor mats are similarly grounded, and thus the room blocks a large amount of the electromagnetic field (EMF) interference.
In the same way, these cellphone radiation protection cases act like a Faraday cage in reverse shielding you by blocking EMF from cellphone emissions (in the form of microwave radiation) and preventing it from entering your body and "electronically polluting" your immediate environment.
The reception of microwave radiation and radio wave transmissions (which re both forms of electromagnetic radiation) to or from the cellphone antenna within the Faraday shielding case are blocked by the case lining material.
More in depth info:
Order Your Cellphone Radiation Protection Case Now
Cases Offer Protection Against Wireless Identity Theft
Faraday Laws of Electromagnetic Fields
"Awesome certification training! I hit the ground running (with confidence) the day I finished the course, and my business has been built from the ground up based on the tried and true methods of a true EMF Professional that would have been far beyond me without this training."
Ross Chambers, Toronto, Canada
"Electrosmog can be more dangerous to you than you think. I was electronically stalked by a cellphone hacker, Chris returned my SOS message within the hour and walked me step by step through how to protect myself right away. I went on to take his excellent training to learn how to protect myself from the many other risks of electronic pollution - I never realized how insidious EMF is!"
Theresa, San Diego, CA
The Bedroom Sanctuary ebook guided me through everything I needed to know to finally eliminate and block the various sources of EMF in my bedroom causing my sleep disorders. Ah, to sleep perchance to dream - blissfully at last."
Chas Chavez, Texas
"This Certification Training is simply the best there is. I thought I would learn how to wave an EMF meter around and that training would be very American based, and instead I learned more professionally valuable, global-in-scope, and life-saving info than I ever imagined. I say 'life saving' because my wife, who took the training with me, is convinced this training saved her life. Three words of advice: Take this training!"
Omar Orillia, Australia
More Personal Stories and Testimonials ...
"EMF Expert Certified Consultants are easy to locate in the Directory, and to me a well trained consultant who's advice you can trust is vital in an area where so much contradictory information and outright misinformation abounds on the internet".
Ronald Sands, UK
"What would I do without my Certified EMF Consultant? She helped me locate my new home, and now I don't buy any new technology without at least a phone consultation with her first."
Liann, Asian Rim,