Natural shielding fabric made from organic cotton
Swiss-Shield® NATURELL™ shielding fabric is manufactured in Switzerland from high-quality organic cotton and features a patented, invisible high-tech yarn. It combines high-frequency shielding performance with the pleasant properties of a classic textile – light, soft, translucent, and easy to work with.
Based on our many years of experience in the field of electrosmog reduction, this fabric is particularly suitable for people who are looking for a discreet, textile solution for living rooms and bedrooms without compromising on naturalness and living comfort.
Why we deliberately chose NATURELL™
Not every shielding fabric is suitable for every application. NATURELL™ has proven itself in practice, especially where comfort, transparency, and easy processing are required—for example, in shielding curtains, canopies, or room dividers.
Thanks to its non-conductive, PES-coated surface, no grounding is required. This makes it much easier to use and also makes the fabric interesting for sensitive areas such as bedrooms or children’s rooms.
Suitable for:
- Shielding curtains in bedrooms and living rooms
- Bed canopies & textile room solutions
- Decorative applications with additional RF reduction
- Users who prefer a natural look
Important to know
This fabric is designed to shield high-frequency electromagnetic fields (HF), e.g. from:
- Mobile communications (3G, 4G, 5G)
- WLAN, Bluetooth
- DECT
👉No shielding of low-frequency fields (LF) when used alone.
Complete LF shielding is only possible with 6-sided shielding (Faraday cage).
This transparent information is important to us—because we want you to use the fabric sensibly and realistically.
Advantages at a glance
- Effective RF shielding up to 40 dB (≈ 99.9%) at 1 GHz
- Organic cotton, environmentally friendly & chemical-free
- Non-conductive – no grounding necessary
- Semi-transparent & translucent
- Washable, sewable & ironable
- OEKO-TEX® STANDARD 100, Class 1 (suitable for baby textiles)
- Made in Switzerland
Mini consultation
“Is this shielding fabric right for me?”
Answer the following questions – they will help you decide:
This fabric is a good fit for you if…
- You want to reduce WiFi, cell phone, or DECT radiation in your living or sleeping areas
- You prefer a soft, natural fabric instead of technical fabrics
- You do not want to install grounding
- You want to use the fabric as a curtain, canopy, or room divider
This fabric is not ideal if …
- You want to specifically shield low-frequency fields (LF)
- Very high field strengths are present
- Maximum technical shielding is required (e.g., for exterior facades)
In these cases, other shielding fabrics or combined solutions are more suitable.
How much fabric do I need?
- Curtain: Window width × 1.5–2 for attractive draping
- Canopy: Depending on bed size and desired overlap
- Targeted shielding: Partial coverage of the main source is often sufficient
Still unsure?
Every living situation is different.
If you don’t know which protective fabric is suitable for your application, we will be happy to help you choose.
Our aim is to recommend a suitable solution – not simply the most expensive product.
Technical data
- Material: 82% cotton, 17% copper, 1% silver
- Yarn: Cotton fiber with 0.02 mm silver-plated copper thread
- Surface: PES-coated, non-conductive
- Sales unit: 1 running meter (= 2.5 m²)
- Width: 250 cm (± 2 cm)
- Weight per unit area: approx. 70 g/m²
- Dimensional stability: ± 3%
- Sales unit: 1 running meter (= 2.5 m²)
Shielding performance & tests
- Shielding attenuation:
- 1 layer: up to 42 dB
- 2 layers: up to 73 dB
- Measuring range: 600 MHz – 40 GHz
- Standards: ASTM D4935-10 / IEEE Std 299-2006
- Expert report: Expert Report 21049
- Test institutes: STR Switzerland, EMF Test Lab Bavaria (DE)
Care instructions
- Gentle wash at 30°C
- Iron on setting 1, without steam
- Do not bleach
- Not suitable for tumble drying
- No dry cleaning
FAQ section
Which shielding fabric is right for me?
That depends on the area of application and your expectations.
Swiss-Shield® NATURELL™ is particularly suitable for textile applications in living rooms and bedrooms where comfort, light transmission, and easy processing are important.
If you are planning maximum shielding or outdoor applications, other fabric types may be more suitable.
For which types of radiation is the fabric suitable?
NATURELL™ is designed to shield high-frequency electromagnetic fields (HF), e.g.:
- Mobile communications (3G, 4G, 5G)
- WLAN
- Bluetooth
- DECT
Does the fabric also shield low-frequency fields (LF)?
No, not when used on its own.
Effective shielding of low-frequency electric or magnetic fields is only possible with complete 6-sided shielding (Faraday cage).
This clear distinction is important to us so that the fabric is used realistically and sensibly.
Does the fabric need to be grounded?
No.
Swiss-Shield® NATURELL™ is not conductive and does not require grounding. This makes it much easier to use, especially for curtains, canopies, or decorative textiles.
Is the fabric suitable for bedrooms or children’s rooms?
Yes.
The fabric is made of organic cotton, is OEKO-TEX® STANDARD 100 (Class 1) certified, and is therefore also suitable for sensitive areas.
How strong is the shielding effect really?
The RF shielding attenuation is:
- up to 42 dB single layer
- up to 73 dB double layer
However, the actual effect always depends on the structural situation, field strength, and arrangement of the fabric.
Can I process the fabric myself?
Yes.
The fabric is Yes.
The fabric is sewable, washable, lightweight, and dimensionally stable. It is suitable for both DIY projects and professional processing.
When is this fabric not the best choice?
NATURELL™ is less suitable:
- for exterior facades
- for very high field exposure
- when maximum technical shielding is a priority
In these cases, we recommend other shielding solutions or individual consultation.
