Anti radiation curtains
Anti radiation curtains ensure that external radiation cannot access your safe home environment. Often there is a transmission tower at too short of a distance (within 400 meters as the crow flies). This mast often has a transmission unit from multiple providers. The 5G part is now added to this. By protecting that specific side of the house by, for example, providing the window with anti radiation fabric / curtains and the walls with anti radiation paint, you keep the radiation out.