As people's lives get more complicated and scientific discoveries to become more widely known, it is important to look at the negative effects on people and the environment. In this study, the potential negative effects of using wireless network devices were reviewed. Initially, electromagnetic waves and their properties were defined, including how they affect human health. In addition, it showed the psychological indications that users of this technology may suffer. Thisreview concludes that the studies conducted so far in the field of radiation hazards have not been able to prove the existence of damage to the functions of the brain and nervous system, not to mention other parts of the body. Electromagnetic wave devices should still be used. In principle, the increase in the power and frequencies of the waves above a certain limit causes a thermal effect, and therefore all users of electromagnetic wave devices must work at frequencies lower than the permissible limit.This review intended to review and evaluate other studieswhich are done in the area of health harm to electromagnetic wave devices to arrive at the results and recommendations that ensure the safety and security of humans from radiation dangers in proportion to our current reality.

Electromagnetic waves, wireless network device,human health, radiation hazards, thermal effect.