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AegisGuard Radiation Shields - The Necessary Accessory
The SAR Wireless Radiation Safety Fallacy
Note:    In 1988, Aegis was the first company to publicly state that the use of estimated thermal Specific Absorption Rate (SAR) measurements as the criteria for determining safe radiation exposure levels was wrong, and it is still wrong.

Aegis is the only company manufacturing shielding products that prevents the greatest possible amount of radiation frequencies between 5 Hz. and 30 GHz. (AegisGuard™ XP was tested up to 45 GHz.) up to 25 Watts at the point of contact from penetrating the body by deflecting, or reflecting, the frequencies away from the body at an angle opposite of the originating source. No other organization possesses our technology and it is difficult to imagine how there can be a more effective method of mitigating the health effects of radiation frequencies than by preventing those frequencies from penetrating the body in the first place

AegisGuard™ Radiation Shield tests are performed at actual radiation frequency levels to determine their shielding effectiveness.

The following example uses the sun to present a simplified explanation about how SAR safety standards for cell phones were created, and why they should not be used as the safety criteria for wireless product and network radiation. As you review the following information, it should be recognized that none of the health effects which have been attributed to wireless radiation are thermally induced.

You are planning go to the beach on a hot, humid, sunny day and want to know beforehand if it is safe to do so. You contact the government public safety health agency in your area for advice and they tell you there is insufficient scientific basis for concluding exposure to the sun is safe or that it poses a risk to millions of people, and although the current safety standards do not suggest there is a risk to your health, further study is required and there are no recommendations available for the amount of time you can safely spend in the hot sun.

You attempt to research current safety standards and are provided with a web site link (no longer available) to locate additional information after being advised the standards are theoretical and were initially developed in a study conducted by a United States Military Research Laboratory in 1986, and last modified on June 14, 1997. This is how the SAR safety standards used and recommended by the United States Federal Communications Commission (FCC), the Food and Drug Administration (FDA) and regulatory agencies worldwide for determining safe levels of cell phone radiation and the radiation emitted by other products were created.

You can download the study in pdf format (5.8 MB) by clicking here and review all 11 chapters of technical information, or concentrate on Chapter 10 to learn how the current SAR safe thermal standards were determined.

The estimated "safe thermal level" references were derived by reviewing various studies that measured the rectal temperature of a healthy 28 year old male exposed to a sunny, hot, humid environment for 61 minutes, using an "estimated maximum rectal temperature threshold" of 39.2o C. (102.5o F.) as the basis for the entire study to calculate estimated safe temperature thresholds (maximum SAR) for various body organs. The study included multiple disclaimers stating the results would be different for a person of a different size, age or general health condition, and this has since been confirmed, particularly for children. It should also be noted the standards cannot be applied to frequencies below 100 MHz., and reports concerning the health effects of frequencies beginning as low as 5 Hz. have been reported in the press regularly since 2000.

This "estimated maximum temperature threshold" was then used to calculate the "estimated safe absorption rates" for individual body organs at a specific frequency lower than what is used by cellular phones, 70 MHz. Here too, the study includes a disclaimer, stating "this assumption would be expected to be valid for RF R at frequencies up to the postresonance region (perhaps up to about 1 GHz. for the average man), but might not be valid at higher frequencies."

The frequency used by older cellular and cordless phones was in the 900 MHz. band. Almost every cellular phone and many cordless phones sold since 2001 operate at frequencies far above 1 GHz., clearly indicating this SAR standard should not be used as the criteria for determining the safety of these products

During February, 2000, the FDA said "There is currently insufficient scientific basis for concluding either that wireless communication technologies are safe or that they pose a risk to millions of users." But a report published by Microwave News in February 2003, and numerous reports since then, confirming otherwise. Click here for additional information about SAR and cellular phones.

The chart shown below was developed by the United States Environmental Protection Agency (EPA) and further demonstrates the deficiencies of SAR standards.

Cellular phones and other wireless products operate at microwave frequencies and there have been scientific studies published and news articles written about the health risks associated with the near field, non-ionizing radiation emitted by these products since 1993. Despite overwhelming evidence confirming SAR thermal (heating) standards should not be used to determine cell phone safety, it continues to be endorsed by regulatory agencies worldwide.

In recent years, reports and studies confirming health risks far below the thermal level (non-thermal) have been published and as indicated in the chart, there are still those who believe the effects are either unknown or questionable. AegisGuard™ radiation shielding technology was initially developed in-house during 1988 because the radiation safety standards that existed at that time were wrong, and they are still wrong.

The following table contains the first paragraph from the category 'Cell Phones & Your Health' exactly as it appeared on the FCC web site as of February 26, 2003. It is important to note their definition of a "safe" phone includes the caveat 'as measured by these standards.'  The quotation marks around the word safe were the only quotation marks appearing on that page of their web site.

In consultation with federal health and safety agencies, such as the Food and Drug Administration (FDA), the FCC has adopted limits for safe exposure to radiofrequency (RF) energy. These limits are given in terms of a unit referred to as the Specific Absorption Rate (SAR), which is a measure of the rate of absorption of RF energy in the body. The FCC requires cell phone manufacturers to ensure that their phones comply with these objective limits for safe exposure. Any cell phone at or below these SAR levels (that is, any phone legally sold in the U.S.) is a "safe" phone, as measured by these standards. Information on SAR levels for many phones is available electronically through the FCC's website,, or by calling the FCC's information line for RF Safety, (202) 418-2464.

AegisGuard™ Radiation Shields were tested at actual emitted radiation frequencies between 5 Hz. to 30 GHz. (AegisGuard™ XP was tested up to 45 GHz.) at radiated output power levels up to 25 Watts using ASTM D4935-99, Mil-STD-285 and IEEE-STD-299 test standards and procedures. See Tests for additional information.

See SAR & Cell Phones and the Wireless RF Controversy for additional information.

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