Swiss Shield RF Shielding Fabric - How It Works?
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Swiss Shield Ultima Shielding Effectiveness

Swiss Shield Ultima (Linear Feet or Meter)

(4 customer reviews)


Swiss Shield Ultima is Recommended to be Used as a Wall/Window Curtain or Floor Sheet

Highest Attenuation Non Conductive Cotton Shielding Fabric – Radio Frequency / Microwave effectiveness of 99.992% or 41 dB at (1000 MHz  / 1 GHz) and over 99.2% or 21 dB effective up to (10,000 MHz / 10 GHz) (Width= 250 cm or 98.4 inches) What is a Linear Foot?

Product Manuals


Swiss Shield Ultima 

Swiss Shield Ultima is our most dense decorative natural cotton EMF fabric with the best radio frequency / microwave radiation shielding characteristics.

Detect, protect and verify: three steps to achieving peace of mind.

Elegant, Decorative, Cotton Fabric, Designed For The Needs of The Chemically Sensitive

This premium fabric is the most compatible with an electromagnetic hypersensitive (EHS) and or multiple chemical sensitivity (MCS) person.


  • Top of the line sheer natural cotton EMF fabric. More dense than Naturell
  • Ideal for curtains to shield windows
  • Designed and manufactured in Switzerland
  • OEKO-TEX Certified as a skin friendly textile and free from harmful substances
  • Used for shielding large surfaces (walls and windows) from high frequency electromagnetic waves (microwaves)
  • Unmatched shielding characteristics
  • Shielding Effectiveness 99.992% or 41 dB at 1000 MHz and 99.2% effective up to 10 GHz
  • Effective shielding for cell towers, cordless phones, security systems, wireless computer gear and more
  • Sheer fabric, easy to work with
  • Easy care – Washable, with no loss in protection
  • All Swiss Shield fabrics reflect high frequency electromagnetic waves and are not externally conductive, therefore no need for grounding, with the exception of Naturell Ultra
  • All Swiss Shield fabrics are made with an insulated metallic thread which allows the fabric to be washed without loss of shielding, with the exception of Naturell Ultra
  • A non-conductive fabric ensures there is no exposed metal which can rub off or become airborne and cause irritation or health effects


Desired quantity of Swiss Shield Ultima

Washing and Drying Care:

  • Machine wash on gentle cycle with cold water
  • Iron without steam lowest temperature setting
  • No bleaching
  • No chemical dry cleaning
  • Hang to dry
  • Do not tumble dry

Recommendations Before Purchase:

  • It is always recommended to measure RF exposure before and after a Swiss Shield fabric installation. If unsure, consult a qualified EMR technician or acquire the proper measuring equipment.
  • Reduce/eliminate the low frequency AC electric fields (ELF) exposure in area of installation. Contact us to learn more.
Swiss Shield Ultima (Linear Feet or Meter)

Additional information

Weight 0.05 kg
Dimensions 0.05 × 23 × 19 cm
Width / Length

Swiss Shield Ultima (Linear Meter)





Raw Materials


Shielding Characteristics


4 reviews for Swiss Shield Ultima (Linear Feet or Meter)

  1. Anonymous (verified owner)

    It really lessened EMF from outside, so I repeatedly ordered it, and made\am still making many curtains. As for my bedroom, where EMF from outside is very intense, I use aluminum for walls, low-e glasses for windows, ultima and naturell curtains for windows and around doors, and also naturell canopies (one over another) and get green flashing lights with the Safe and Sound meter.
    I am extremely sensitive to EMF but finally I get to sleep well. I deeply appreciate!

  2. Anonymous (verified owner)

    It’s very nice stuff, soft and it did block the microwave EMF when I wrapped it all around!

  3. Anonymous (verified owner)

    This product will lessen RF. Nice color.

  4. Anonymous (verified owner)

    Really like this fabric as it looks and feels like normal cotton but shields RF really well!
    Plan on cutting a piece for my wallet to protect it from security theft.

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