66Copyright © 2005 Nokia. All rights reserved.external RF energy or if you have any questions. Switch off your device in health carefacilities when any regulations posted in these areas instruct you to do so. Hospitals orhealth care facilities may be using equipment that could be sensitive to external RF energy.PacemakersPacemaker manufacturers recommend that a minimum separation of 6 in. (15.3 cm) bemaintained between a wireless phone and a pacemaker to avoid potential interference withthe pacemaker. These recommendations are consistent with the independent research byand recommendations of Wireless Technology Research. Persons with pacemakers should:• always keep the device more than 6 in. (15.3 cm) from their pacemaker when the deviceis switched on;• not carry the device in a breast pocket; and• hold the device to the ear opposite the pacemaker to minimize the potential forinterference.If you have any reason to suspect that interference is taking place, switch off your deviceimmediately.Hearing aidsSome digital wireless devices may interfere with some hearing aids. If interference occurs,consult your service provider.■ Potentially explosive environmentsSwitch off your device when in any area with a potentially explosive atmosphere and obeyall signs and instructions. Potentially explosive atmospheres include areas where you wouldnormally be advised to turn off your vehicle engine. Sparks in such areas could cause anexplosion or fire resulting in bodily injury or even death. Switch off the device at refuellingpoints such as near gas pumps at service stations. Observe restrictions on the use of radio