RF Safe argues that many “anti-radiation” phone cases market misleading “% blocked” claims based on lab material tests rather than whole-device, real-world performance. The article promotes RF Safe’s TruthCase/QuantaCase as a “physics-first” design that avoids advertising a single blocking percentage and emphasizes directional shielding and user education. It cites a 2017 CBS San Francisco/KPIX test as an example of how some flip-style shielding cases can reduce measured RF in certain orientations but may increase readings in other common-use configurations.