The Gardava EMF Faraday Beanie is a classic ribbed knit hat with a silver-fiber lining that shields your head from RF signals. Independently lab tested to the IEEE-299 standard, it looks like an everyday cuffed beanie — no metallic shine — for your desk, flights or around town.
Key Features:
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Lab-Tested Shielding: Tested by US Tech Lab to the IEEE-299 standard: 60.7–69.0 dB reduction (over 99.99%) from 300 MHz to 20 GHz, covering cell, WiFi and Bluetooth bands.
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Silver-Fiber Lining: A proprietary silver-lined interior sits under a soft acrylic knit, shielding the area the hat covers from RF signals.
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Snug One-Size Fit: Fits heads 20–24″ (51–61 cm). It is knit to sit close so the lining stays against your head; heads near 24″ will find it firm.
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Honest Coverage: It covers the top and back of the head and does not cover the ears.
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Discreet Look: Ribbed, cuffed unisex design with no visible metal — nobody will know it's a faraday hat.
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Soft & Breathable: Lightweight lining under a breathable knit outer for all-day wear indoors or out.
Specifications:
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Test Standard: IEEE-299 (US Tech Lab)
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Tested Attenuation: 60.7–69.0 dB, 300 MHz–20 GHz
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Fit: One size, head circumference 20–24″ (51–61 cm), snug
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Exterior: Breathable acrylic knit
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Lining: Proprietary silver-lined EMF blocking fabric
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Closure: Pull-on
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Size (flat): 9″ x 9″
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Shipping Weight: 0.15 lb
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Care: Hand wash only
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Color: Black
What's Included:
- 1 x Gardava EMF Faraday Beanie
Sizing & Care: To find your size, wrap a soft tape measure around your head just above your ears and eyebrows. Between 20″ and 24″ fits; the fit is meant to be snug. To check the shielding yourself, lay the beanie flat over an RF meter and watch the reading drop. Hand wash only to protect the silver lining.
