Extensive research has been conducted into possible health effects of radio frequency technology. Wireless LAN signals are in the radio frequency range that experts conclude there are no adverse health effects when operating below the safety guideline limits. Furthermore, Wireless LAN uses very low levels of power, less than the power than a mobile phone. Wireless LAN connections are also “silent” until data is transmitted, so radio signals are only created during actual transfers of data. Even heavy users accessing hundreds of megabytes of data a day would only end up transmitting for a short period .
The World Health Organisation advises “Considering the very low exposure levels and research results collected to date, there is no convincing scientific evidence that the weak RF signals from base stations and wireless networks cause adverse health effects.”
Information provided by the Australian Mobile Telecommunications Association