The city of Berkley, California is concerned about EMF protection. City officials have passed the “Right to Know” law, which requires cell phone retailers to give shoppers a printed handout or display an in-store notice that details U.S. guidelines regarding cell phone radiation. Cell phones and other electronic devices, such as laptops, tablets and microwave ovens, emit EMF, which is made up of invisible waves that can pass through a person or pet. Research reveals that over exposure to EMF can cause high blood pressure, restless sleep, dizziness, headaches and memory loss in humans. Some medical professionals warn of the potential for brain tumors and cancer. Vortex Bioshield produces a selection of EMF Blockers designed to control the amount of EMF exposure the user receives. The devices range from small, slim blockers that attach discretely to a cell phone or tablet to room-size protection to classic gold and silver jewelry items that help counteract the impact of electromagnetic pollution. The company even has devices that fit securely on a pet’s collar. Each device works all day, every day to protect the user, but none will impact the performance of an electronic tool, and no batteries are required.