EMF Shielding Beanie - Silver Fiber Hat

A knit beanie made from silver fiber-nylon fabric, in black and white. The conductive fabric reduces radio-frequency (RF) signals passing through the part of the head it covers. It's for people who want head shielding that looks and wears like an ordinary warm hat.

Details

• Material: silver fiber-nylon
• Color: black and white
• Size: one size, listed to fit M to XXXL
• Care: hand wash, air dry, do not bleach. Skip fabric softener and hot water too; both wear down silver fiber

How to Check It Works

Take a reading with an RF meter, or note your phone's signal bars, then wrap the meter or phone in the beanie, folded double, with no open edges and check again. A lower reading or fewer bars shows the fabric attenuating the signal. The amount depends on the source, the distance and how many layers you wrap, so we don't promise a number.

Honest Notes

• It covers the top and back of the head. Your face, neck and the lower part of your ears are unaffected.
• It's made for radio-frequency sources such as Wi-Fi, Bluetooth and cellular, not for low-frequency magnetic fields from household wiring and appliances.
• It's not a medical device.

Free standard shipping within the US.