Faraday Cage Wi-Fi Router Guard
Wi-Fi router guards are now becoming a thing, but before you get one of these faraday cage-like accessories, read some of the reviews. Despite being able to block electromagnetic radiation and signals, installing one around your router would prevent its signal from transmitting as well, thus rendering your internet connection useless. Plus, several international studies have found no evidence that exposure to low level electromagnetic fields is harmful to human health. Read more to see a company trying to explain one of these “Wi-Fi Router Smart Guard” products.

If you’re wondering how a faraday cage works, it basically functions due to an external electrical field causing the electric charges within the cage’s conducting material to be distributed so that they cancel the field’s effect in its interior. This phenomenon is typically used to protect sensitive electronic equipment from external radio frequency interference (RFI) often during testing or alignment of the device. Other uses include shielding people and equipment from actual electric currents like lightning strikes and electrostatic discharges.

JJ CARE [Upgraded] WiFi Router Cover, EMF Guard, Blocks Up to 95% of EMF RF Waves, 12” x 9” x 3”, EMF WiFi Cover, WiFi Radiation Cover, EMF Protection Router Shield, Universal Fit – Silver
  • ✅ PROTECTS FROM HARMFUL RADIATION - The Wi-Fi Router Cover is proven to block about 95% of electromagnetic field (EMF) and radio frequency (RF) radiation emitted by routers all day long. The EMF blocker works like a Faraday fabric or cage to effectively shield the router and highly reduce the intensity of radiation it emits in a given space.
  • ✅ WORKS LIKE A FARADAY ENCLOSURE - The Wi-Fi Radiation Cover is a metallic mesh box that works like a Faraday cage enclosing and attenuating electromagnetic waves emitted by the router. The portable router box is a stainless steel case with good conductivity. The materials used reduce the strength of waves making this blocking device very effective in containing radiation.
  • ✅ KEEPS HOMES SAFE - Why use the Wi-Fi Router Shield at home? A router's signal uses the same RF radiation as a microwave oven. Prolonged exposure to devices with high frequencies may cause headache, loss of memory, sleep disturbance and more. Studies are underway as to its possible long term reproductive, neurological and carcinogenic effects on humans.
  • ✅ EASY TO USE - Our EMF RF Cover will fit most router sizes. After router measurement, it is best to leave at least 1-inch space for the cables and other attachments. There is an opening provided for coaxial wires to run through. The fixed space that the box will take up in a room should also be taken into consideration during measurement.
  • ✅ TAKE CONTROL OF RADIATION - Monitor and control radiation exposure in homes, offices and schools with the Wi-Fi router cover. No complicated installations needed! It is best to use an EMF meter before and after using the blocker to check its efficacy. Also test when the lid of the box is closed and open. Use of this product should not at all affect signal range and internet speed.