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EMF Shielding Services

In many instances, shielding is the option of preference to reduce elevated EMF levels to mitigate equipment interference (EMI) or possible health concerns. Shielding choices can include shielding of either the source or the affected area or device. FMS provides shielding design and implementation services for DC & AC magnetic fields as well as radio frequency (RF) fields.

The shielding of AC magnetic fields is particularly challenging as they pass undiminished through earth, concrete, most conventional building materials including wood, drywall and even a thick layer of lead! Through extensive research, FMS has acquired the unique capability to engineer and execute very high performance AC magnetic field shielding schemes utilizing a superior “eddy current cancellation” shielding technology. To achieve optimum results, this shielding technology requires equally weighted attention be given to:

100% Shielded TEM Microscope Room

Final Testing of Shielded TEM Room

  • The design and engineering of the shield geometry and coverage
  • Specification of conducting shielding material characteristics
  • Critical site installation techniques to insure optimum shield performance

By managing these three key components, FMS has successfully implemented hundreds of successful AC magnetic field schemes throughout the US and with technology partnerships, at numerous sites throughout the world. Through innovative engineering and installation techniques, FMS in some critical use projects, has reduced elevated AC magnetic fields nearly 99.9%. Most notable were requirements in several “Nanotechnology” research laboratory projects for FMS to provide multiple rooms containing TEM microscopes, with ambient EMF environments less than 0.1mG by installation of robust shielding schemes.

To insure that shielding objectives are met, FMS provides a complete AC magnetic field implementation service which includes all design, engineering, shielding material supply and site installation. FMS maintains a team of technicians with the requisite skill sets and experience to successfully accomplish installation of shielding schemes at client locations throughout the world. By controlling all critical aspects, FMS offers a guarantee of performance for the design and installation of its shielding installations.

Recent Projects

Acess – Japan

While designing a new fourteen (14) story headquarters building in Osaka, Japan, Acces Co. Ltd., a major software development company


The American Broadcasting Company (ABC) is an American commercial broadcast television network that is owned by the Disney–ABC Television Group

30 Hudson

Goldman Sachs’ construction of a 42-story, 1.5 million sq. ft. office tower was the first phase of a new campus known as The 30 Hudson Development Project

85 Broad Street

To mitigate EMI threat concerns, FMS designed and implemented multiple special magnetic field shielding schemes to lower EMF levels to acceptable, non EMI threat levels.


Over its 20 years, FMS has successfully completed hundreds of EMI projects which included a diverse range of consulting and mitigation services.

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