Wireless devices and the networks that support them are becoming more common in Alberta schools. WiFi is a wireless networking technology that allows computers and other devices to communicate over a wireless signal. Typically the signal is carried by radio waves over an area of up to 100 meters. Through the implementation of a WiFi network, school jurisdictions are able to offer teachers and students greater flexibility in accessing and using online learning resources, allowing students to use technology outside of the computer lab and integrate technology into day-to-day learning. Since the 1970s, there have been public concerns about electromagnetic radiation and more recently this has included WiFi in schools. As a response to these concerns, the World Health Organization (WHO) is conducting research on health repercussions of Extremely Low-Frequency (ELF) electromagnetic radiation, including an electromagnetic field (EMF) research project involving countries from around the world. After reviewing thousands of studies, WHO concluded that there is no conclusive evidence that WiFi exposure adversely affects human health. This fact sheet discusses information on electromagnetic fields, ELF electromagnetic radiation, regulations, and what research says about WiFi and health effects.