We back onto a cell tower. Put these up in the bedroom and the reading on my meter dropped to about a third of what it was.

Bought a cheap RF meter out of curiosity, then hung these. The reading by the window went right down. Wish I had checked years ago.

Our smart meter is bolted to the other side of the bedroom wall. These took a real chunk off the reading on that side.

I am the type who notices this stuff. Just knowing the bedroom reading is lower lets me switch off properly at night.

Hard to explain, the bedroom just feels quieter and calmer to be in now. We both wind down a lot faster in the evenings.

Surrounded by routers in our building. Having one room that feels like a lower-signal zone has been worth it for my own peace of mind.

Measured the kids' room before anything else and put a set up straight away. Lower reading, and properly dark for naps. Win win.

Between the blackout and the lower reading, I sleep so much better in here. The room goes properly dark too.

Honestly just looks like a nice heavy curtain. Nobody who visits has any idea it does anything more.