VENTUS Shielding Fabric: 47 dB Protection against 5G, WIFI & Electrosmog from Radio Frequency Radiation | up to 99,997% shielding effectiveness against EMF
We are not exaggerating when we describe the VENTUS Shielding Fabric as something very special, whether technically or visually. VENTUS is the latest fabric for shielding electromagnetic fields and the most powerful for shielding electromagnetic fields from Swiss-Shield®. This cotton fabric, which is very appealing both visually and haptically, is semi-transparent and feels soft and light—simply pleasant to the touch. These factors make the VENTUS perfectly suited as a shielding curtain fabric and it is also simply ideal as a shielding fabric for canopies to protect against RF Electrosmog. Since this shielding fabric is non-conductive, no grounding is necessary.
Because the interwoven, radio-reflective copper and silver threads are insulated for protection, there is no oxidation with oxygen, and therefore no discoloration of the VENTUS Shielding Fabric over time.
VENTUS Shielding Fabric: Optimal Living Comfort and Luxury Appearance
After 34 years of experience, Swiss-Shield® achieves a sensation – yet again – with this shielding fabric. Achieving high effectiveness against EMF from radio frequency radiation while maintaining such high living comfort is definitely a challenge. And thus, the pleasant feel is particularly enjoyable when used as a canopy, plus the interior remains airy and breathable. Any concerns regarding possible heat buildup are completely unfounded. A curtain, canopy, or room divider sewn with VENUS remains unchanged in an appealing, natural color tone, ECRU-WHITE, for years.
The VENTUS Shielding Fabric consists of a special Eco cotton weave. This patented high-tech yarn consists of 78% cotton and 22% copper and silver, which creates these high shielding attenuation values of up to 47 dB (99.997% shielding effectiveness).
Applications and Features
The compelling properties of the VENTUS shielding fabric are:
- After 34 years of experience, the latest and best shielding fabric from Swiss-Shield®
- Highly effective without compromising on living comfort
- Soft, light, and pleasant feel (haptics)
- Airy and breathable for luxurious canopies
- Eco-cotton weave
- Textile properties: Washable, ironable, sewable
- Quality classification: Very high
This product contains electrically conductive parts internally, but these are neither contactable nor groundable. Therefore, individual surfaces do not shield low-frequency alternating electric fields (LF). However, if a Faraday cage (full six-sided shielding) is created from this product, no low-frequency alternating electric fields (LF) can be detected inside using a potential-free measurement.
Technical Data for VENTUS Shielding Fabric
- Shielding Attenuation: 47 dB
Unless otherwise specified, the stated dB values apply at 1 GHz. Measurements from 600 MHz to 40 GHz according to standards ASTM D4935-10 or IEEE Std 299-2006. - Width: 245 cm, +/- 5%
- Length: Sold by the meter (cut by the yard/linear meter)
- Raw materials: 78% Cotton, 22% Copper and Silver
- Surface Weight: 79 g/m²
- Dimensional Stability: +/- 3 %
- Application: Curtain, Canopy, Room Divider
- Field Type: RF (High-Frequency Electromagnetic Fields)
- Ecology: Very High
Please note: If low-frequency electric fields also need to be shielded, supplementary measures are strictly necessary, for example, using shielding paints or shielding wallpapers.
Care instructions about shielding fabric VENTUS
- Gentle cycle at 30°C
- Iron without steam at degree 1
- No drying in tumble dryers
- No bleaching
- No chemical dry-cleaning
- Wash only with our special washing detergent TEXCARE, without enzymes or bleaching agents
FAQ about VENTUS shielding fabric
The VENTUS shielding fabric is highly effective against high-frequency electromagnetic fields (RF), also known as electrosmog, caused by mobile communications (2G, 3G, 4G, 5G), WLAN, DECT, and Bluetooth. The shielding attenuation is up to 47 dB (at 1 GHz), which corresponds to a shielding performance of over 99.99%.
Yes, the fabric is effective against 5G. While shielding effectiveness decreases with increasing frequency, the VENTUS still offers very high protection in the 5G range (e.g., 3,5 GHz), providing approximately 36 dB (> 99,97%) attenuation.
No. The VENTUS shielding fabric is not electrically conductive because the interwoven copper and silver threads are insulated. For this reason, grounding to shield low-frequency electric fields (LF) is neither necessary nor possible.
No. The radio-reflective copper and silver threads are interwoven with insulation to protect them from oxidation by oxygen. As a result, the ecru-white fabric will not discolor or stain over the years.
Thanks to its semi-transparent look, light feel, and breathability, VENTUS is ideal for creating curtains, canopies, and room dividers in living and sleeping areas. It was specially developed for high living comfort.
Individual surfaces of the VENTUS fabric do not shield low-frequency alternating electric fields (LF), as it is non-conductive and cannot be grounded. To shield LF fields, supplementary measures with other materials (e.g., shielding paint, shielding wallpaper) or the creation of a complete six-sided Faraday cage is recommended.
The fabric is washable and ironable. Gentle washing at 30°C is recommended. Use only a special detergent without enzymes, bleach, or fabric softeners to protect the delicate metal filaments. Ironing is possible without steam at level 1.
Order Cancellation | Request Free Test Sample
If the shielding material is customized and cut from the roll in increments of 1.0 running meters at the customer’s request, returns or cancellation of the order are not possible. Therefore, you have the option to request a free material sample – please request it BEFORE ORDERING custom-cut material!
All our shielding materials are highly advanced specialty products with outstanding performance. The resale of custom-cut shielding material of this performance class is either not possible or only possible with significant financial loss, and therefore legally falls under the exception to the right of withdrawal.
By ordering custom-cut running meters, your right of withdrawal expires; by placing the order, you accept our cancellation terms and waive your right to return.

































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