EMV Shielding Fleece Wallpaper (Petersfield GU31)

Marburg EMV Shielding Fleece/wall covering
10mx0.5 m, 5m square coverage per roll manufactured in Germany by Marburg Wallcoverings.
Its purpose is to reduce the transmission of certain electromagnetic signals through walls and ceilings, including mobile phone and Wi-Fi signals.

The material is designed to attenuate radio-frequency electromagnetic radiation passing through a treated surface.
For example, it can reduce signals from:
Mobile phone networks
Wi-Fi routers
Cordless telephone systems
Other radio-frequency sources within its effective frequency range