EMF, Plainly
Plain answers about radiation from phones, Wi-Fi and earbuds, with the source behind every number.
- PhoneHow to reduce EMF from your phone (what actually works)
The steps that reliably cut the radio energy your body absorbs from a phone are free.
- StickersDo EMF stickers work? What the evidence says
No. US regulators have said for more than 20 years that stickers and small shields don't meaningfully cut what a phone gives off, and lab tests of the...
- BlockersEMF blockers: which ones work and which don't
The EMF blockers with a measurable effect are the ones that put conductive material all the way around a device, or squarely between the device and you.
- HomeEMF protection for your home: practical steps that cost little
The cheapest EMF protection for a home is distance. Move the Wi-Fi router out of the bedroom, charge your phone across the room, put desk computers on an...
- Wi-Fi routerWi-Fi router EMF: should you shield it or move it?
Move it. A router's power density falls with the square of the distance, so doubling the gap leaves a quarter of it where you sit.
- Earbuds & watchAirPods and EMF: what Bluetooth earbuds actually emit
AirPods do transmit radio waves, and the published numbers are small. In the SAR report Apple filed with the FCC, the right earbud of AirPods Pro 3 (2025)...
- LaptopLaptop EMF: what a lap pad does and simpler fixes
A laptop EMF shield pad puts a metal layer under the laptop, so it can cut the Wi-Fi and Bluetooth signal traveling down into your legs.