This will NOT stop G 5 of course but you don't have to stop any frequencies. You do need to reduce your exposure as much as you can. Studies show long term effects are harmful. Back in the 1990's, your odds of getting some type of cancer thru out your life was 1 in 4. Now's it's 1 out of 2. What's changed? Everything. There are poisons in our food, water, medicine and chemtrail particles in the air we breathe. With cell phones, smart meters and wifi widely used it only adds to the problem. You can't escape any of this but you still can do something about it. I'll also be adding a personal grounding wire to the cage so I can ground myself to the Earth all night.