Posted by sailplane on Nov 24, 2018; 12:17am
URL: https://www.es-forum.com/Urgently-Need-Help-Re-New-Wifi-Intrusion-tp4033080p4033111.html

Miller wrote

I could see how painting all four walls of a room in shielding paint may trap rfs within. Perhaps painting just the one wall close in proximity would be better? I was thinking of painting the inside wall(s).

If you do the walls, then you have to do the ceiling, floor,  door and tint/mesh over windows too.. and have wires behind walls that run through metal conduit... or have no live wires anywhere within a few feet of this paint.
Doing one wall can work to reduce as long as you never get too close to it.