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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.
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 those studies, or in
determining the reasons for inconsistent results.
What is FDA's role concerning the
safety of wireless phones?
Under the law, FDA does not review the safety of
radiation-emitting consumer products such as
wireless phones before they can be sold, as it does
with new drugs or medical devices. However, the
agency has authority to take action if wireless
phones are shown to emit radio frequency energy
(RF) at a level that is hazardous to the user. In such a
case, FDA could require the manufacturers of
wireless phones to notify users of the health hazard
and to repair, replace or recall the phones so that the
hazard no longer exists.