When it comes to EMF reduction, using a wired internet connection and disabling WiFi is a great way to reduce the RF levels on your laptop. Many people don?t realize that large electric fields can also be present when using a laptop. The easiest way to significantly reduce electric fields is to make sure any laptop you purchase has a three-pronged power cord. High electric fields play a large part in feeling tired when working on a laptop for long periods of time. Check your laptop cord next time you use it and see if it has two or three prongs!