Another Post-Optimal Object from Rob Knecht. The EMF protective dog helmet is designed for family canines that may be susceptible to prolonged exposure of Electromagnetic Fields. Wireless networking, electrical appliances, and in home wiring may inhibit your pet's health. The helmet is constructed from fiberglass and EMF shielding fabric to prevent any stray magnetic fields from reaching your dog's brain. A nylon collar is fitted with a EMF detector to alert the pet owner of any dangerous EMF fields.