Both panel heaters are safe for the elderly, children and pets! Panel heater without exposed components, panel materials are insulators, non-conductive, No gas is produced during operation, no light, no noise, low temperature non-metal panels, The Fiber cement board of wall convection ceramic panel heater has a heat transfer rate that is about 40 times lower than the aluminum metal surface (low coefficient of thermal conductivity),and The thermo plastic polyester PET board of carbon crystal heater panel , non-metallic panels, is a poor conductor of heat. It's also safe.