EVOLUTION ™ shielding fabric | for curtains and canopies | RF shielding up to 30 dB from electrosmog caused by RF, WLAN, DECT, LTE | 5G ready!


EVOLUTION™ by Swiss-Shield® is a half-transparent fabric made out of Trevira® for HF protection from mobile radiation from WLAN, mobile radio, DECT, etc. It is typically used as a curtain fabric or canopy because of the integrated lead tape.

The well thought out combination of copper and silver ensures a high attenuation of up to 43 dB with two layers (up to 30 dB with one layer). Not electrically conductive and therefore cannot be grounded for LF!

Price per running meter (1 m x 2.5 m)
Quantity = Number of running meters

Delivery time: 3-7 business days | Request test sample possible
Customer-specific cut-off, withdrawal/revocation not possible

or: buy at SFERICS®
PROnatur24® SHOP
Independently verified
4.64 store rating (42 reviews) | 4.71 product rating

Protected from mobile radiation and midges in the PROnatur24 shielding fabrics

EVOLUTION ™ shielding fabric against HF electrosmog caused by radio radiation (mobile radio, WIFI, DECT, …) For shielding of RF by means of a curtain or canopy. Crease-resistant, hard-wearing and easy to clean.

The EVOLUTION™ shielding fabric is among the most attractive shielding fabrics and, with its integrated lead tape, is perfect for curtains and canopies as well. Because the woven, radio-reflecting copper and silver threads are insulated for protection, there is no oxidation with oxygen and, as a result, the EVOLUTION shielding fabric’s color does not fade with time. The curtain or canopy equipped with the EVOLUTION™ will stay there in its natural WHITE color for years.

Trevira® is integrated into the EVOLUTION™ shielding fabric, which gives it a crease-free effect. Along with the sewn on lead tape, it is simply a great combination of appearance and effect. This shielding fabric is a half-transparent cotton wool fabric for protection from high-frequency electromagnetic fields (HF) from transmission masts and private devices such as cell phones, smartphones, WLAN routers, mobile LTE Internet, etc. It should be noted, however, that this shielding fabric cannot be earthed. EVOLUTION™ is not electrically conductive, so protection provided by reflecting invading mobile radiation is limited.

The EVOLUTION™ shielding fabric is made out of a special polyester tissue. This tissue is made out of 91% polyester (Trevira), 8.5% copper, and 0.5% silver and reaches attenuation values of up to 30 dB, even up to 43 dB with two layers.

Use and assets of the EVOLUTION ™

Ideally, the EVOLUTION™ needs to be used for curtains and canopies because of its transparency.

The convincing properties of the EVOLUTION™ shielding fabric are:

  • Crease-free through Trevira®
  • Textile properties: washable, can be ironed, can be sewn
  • Quality grading: very high

Please note: if you also need protection from low-frequency electric fields, you will need complementary methods, such as shielding paints, to achieve this.

Shielding fabric EVOLUTION for anti EMF electrosmog canopies

With a focus on building biology in the future, we recommend that you choose our shielding fabric SILVER TULLE when you plan to use EVOLUTION as a canopy (despite the optical disadvantage). Even if EVOLUTION is still sufficient to start 5G in terms of shielding attenuation, there is a significant drop in reflective power / shielding performance already far below 10 GHz. EVOLUTION two-layered is not an option for the canopy due to insufficient air circulation, air supply and corresponding heat accumulation in summer. However, as a two-layer curtain NATURELL remains effective and visually very attractive – just like our alternative white screening fabric ULTIMA.

Caring for the EVOLUTION ™ shielding fabric

Wash gently at 30°C. Iron without steam for the first part. Do not tumble dry. Do not bleach. Do not dry clean. For allergy sufferers: every new fabric smells, wash before first use! We recommend our ecological, vegan UNI SAPON detergent.

EVOLUTION shielding fabric is well-suited to curtains and canopies with its crease-free properties
EVOLUTION shielding fabric is well-suited to curtains and canopies with its crease-free properties

Made in Switzerland

EVOLUTION™ HF electrosmog shielding fabric technical information

  • Screening attenuation: 30 dB; 43 dB with two layers. All values provided apply for 1 GHz. Measurement from 40/600 MHz to 40 GHz according to standards ASTM D4935-10 or IEEE Std 299-2006.
  • Length: Running meter
  • Materials: 91% polyester (Trevira), 8.5 % copper, 0.5 % silver
  • Dimensional stability: +/- 1 %
  • Grammage: 80 g/m²
  • Grounding: Not electrically conductive. No protection from electric alternating fields (LF), these must be reduced through complementary methods. For this, we recommend suitable shielding paint or activation with a mains decoupler.
  • Application: Curtains, windows, canopies
  • Field type: HF (high-frequency electromagnetic fields)
  • Ecology: Very high
HF screening Materials Web width Weight Color Coloring possible Discoloration of the silver Optical transparency Quality grading Washing test / screening attenuation
up to 30 dB Cotton wool
250 cm
+/- 2 cm
80 g/m² white no no middle Very high Good

No cancellation for FABRICS

Like for cuts, there is no right to return shielding fabric.

Please note that cancellations do not apply to these products, because they were cut to the customer’s specifications. Reselling a tailored item is no longer possible. For this reason, it is possible to request a free sample of the EVOLUTION™ shielding fabric. By ordering pre-finished products, waiving the statutory right to return goods is accepted. We only sell the highest-quality fabrics! Because of the high production costs and a favourable price, small flaws are not grounds for complaint.

Documentation of the EVOLUTION™ shielding fabric (.pdf)

Technical details Laboratory report screening attenuation
Weight 0.24 kg
Dimensions 250 × 100 × 0.01 cm
Running meter

Quantity = desired length of EVOLUTION shielding fabric


Running meter


Field type

HF (high-frequency electromagnetic field)


Very high


Country of origin





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