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Bill C-648 Press Release
Bill C-648 Press Release
Swiss Shield Naturell Ultra
Product #: SLT-1347
Out of Stock

Externally Conductive Premium Cotton Shielding Fabric - Radio Frequency / Microwave effectiveness of 99.99% or 40 dB at (1000 MHz  / 1 GHz) and 99% effective up to (10,000 MHz / 10 GHz) (Width= 250 cm or 98.4 inches)
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Swiss Shield Fabrics and Bed Canopies

Naturell Ultra is our premium externally conductive and groundable fabric providing the option to reduce low frequency electric fields in addition to Radio Frequency / Microwave Radiation 

  • Premium semi-transparent cotton fabric (gray)
  • Silver/copper filament is coated with carbon therefore it is electrically conductive and can be grounded providing shielding of low frequency electric fields
  • Ideal for curtains to shield windows or bed canopies
  • 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 and low frequency electric fields when grounded
  • Radio Frequency Shielding Effectiveness 99.99% or 40 dB at 1000 MHz and 99% effective up to 10 GHz
  • Effective shielding for cell towers, cordless phones, security systems, wireless routers and more
  • Easy care - Machine Washable, with no loss in protection.  See fabric care guidelines for specific cleaning and maintenance instructions.
Detect, Protect and Verify: Three

Supplied With:

- Desired Quantity of Fabric

Technical Data:


Width / Length:

250 cm (98.4 inches) +/- 1 inch / by the linear meter or linear foot


Sheer, Light Gray


Washable, colourfast


Hand wash in cold water, hang to dry

Raw Materials:

81% cotton, 17% copper, 1% silver, 1% carbon


MIL-STD 285, NSA 65-6, Öko-Tex Standard 100+1000

Shielding Characteristics:

99.99% or 40 dB at 1000 MHz

Surface Conductivity

Electrically conductive – can be grounded


Washing and Drying Care:

See downloads tab: Fabric and Installation Guide

Comparison of Swiss Shield Fabric Details
Care Instructions for Swiss Shield Fabrics
OEKO-TEX Human Ecological Safety Certificate
Swiss Shield Fabrics Shielding Comparison Line Graph
Swiss Shield Naturell Ultra Spec. Sheet
Swiss Shield Naturell-Ultra RF Shielding Performance