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between the phone and the user s head. These RF
exposures are limited by Federal Communications
Commission safety guidelines that were developed
with the advice of FDA and other federal health and
safety agencies. When the phone is located at
greater distances from the user, the exposure to RF is
drastically lower because a person's RF exposure
decreases rapidly with increasing distance from the
source. The so-called "cordless phones," which have
a base unit connected to the telephone wiring in a
house, typically operate at far lower power levels,
and thus produce RF exposures well within the FCC's
compliance limits.
2. Do wireless phones pose a health hazard?
The available scientific evidence does not show that
any health problems are associated with using
wireless phones. There is no proof, however, that
wireless phones are absolutely safe. Wireless phones
emit low levels of radio frequency energy (RF) in the
microwave range while being used. They also emit
very low levels of RF when in the stand-by mode.
Whereas high levels of RF can produce health effects
(by heating tissue), exposure to low level RF that does
not produce heating effects causes no known
adverse health effects. Many studies of low level RF
exposures have not found any biological effects.
Some studies have suggested that some biological
effects may occur, but such findings have not been
confirmed by additional research. In some cases,
other researchers have had difficulty in reproducing
Health and Safety Information
184
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