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
Radiation Shield tests
are performed at actual radiation
frequency levels for 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
it should be recognized that none of the
health effects which have
to wireless radiation are thermally induced.
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
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.