The device comes in a variety of forms ranging from the $39 Aries Shield ("a silicon based micro processor that ... decomposes oscillations of electromagnetic fields") to the $249 Aires Defender Utility (which "has two next generation 9 core silicon based micro processor (sic) that provide universal protection from electromagnetic smog of the broadband frequencies").
The environmental exposure to RF radiation in some schools is higher than reported levels for non-thermal biological effects. In order to reduce children’s exposure to RF radiation, schools should prefer wired network connections, allow laptop, tablets, and mobile phone usage only in flight mode and deactivate Wi-Fi access points when internet is not needed for learning purposes.
The present study was designed to determine the effects of 2.45 GHz EMR (60 min/day for 28 days) on the brain antioxidant redox system and electroencephalography (EEG) records in rat, as well as examine the possible protective effects of selenium and L-carnitine. EMR-exposed animals showed lower concentration of vitamins A, C, and E than controls, although their concentrations were increased by selenium and L-carnitine supplementation. Animals which received selenium and L-carnitine in addition to EMR also showed lower levels of lipid peroxidation. Results indicate that L-carnitine and selenium seem to have protective effects on the 2.45 GHz-induced decrease of the vitamins by supporting antioxidant redox system.
According to a peer-reviewed Dec. 2006 study of 420,095 cell phone users in Denmark, the results showed a "reduced brain tumor risk" among long-term subscribers.  Two other peer-reviewed studies also found that cell phone users had a slightly decreased risk of developing brain tumors. A July 20, 2005 Danish study  found a "decreased risk for high-grade glioma," a malignant brain tumor, and a 2005 Swedish study  also found a "decreased odds ratio" for developing glioma as well as meningioma, another type of brain tumor.
Many modems provided by internet service providers are also routers pushing wifi. So even if you bought your own router and use it for your internet, you’re modem may also be pushing wifi into your home. I just ran into this personally. I was helping my mother in law set up internet in her new home. She had a router that she wanted me to set up, but when doing so I found out the modem her internet company gave her was already pushing out a wifi. Obviously, I disabled that and set up a few ethernet cables in her home.
Our studies point that WIFI is not completely safe at home near the animal or human body because it employ harmful radio waves. But it is safer compared to cellphone that it is close to our brain during communications. WIFI signals are everywhere. If you switched off your WiFi at night, you are still exposed to the WIFI signals coming in from neighbors but we have a significant reduction of the bioeffects of WIFI with distance from the router. Future investigations will focus on the long term bioeffects of WIFI placed at an important distance from the animal or the human.
The frequency of radiofrequency electromagnetic radiation ranges from 30 kilohertz (30 kHz, or 30,000 Hz) to 300 gigahertz (300 GHz, or 300 billion Hz). Electromagnetic fields in the radiofrequency range are used for telecommunications applications, including cell phones, televisions, and radio transmissions. The human body absorbs energy from devices that emit radiofrequency electromagnetic radiation. The dose of the absorbed energy is estimated using a measure called the specific absorption rate (SAR), which is expressed in watts per kilogram of body weight.
Cell phone safety is a top priority for people all over the world—especially those with children. There are many tips for ensuring that both you and your kids are using your cell phone or smartphone safely—from being careful when you cross the road, to learning the driving laws in your area, which way to carry your phone for radiation reduction, and monitoring and limiting the amount of time your child or teen spends using their device.