A d d i t i o n a l s a f e t y i n f o r m a t i o n60 Copyright © 2007 Nokia. All rights reserved.■ Potentially explosive environmentsSwitch off your device when in any area with a potentiallyexplosive atmosphere, and obey all signs and instructions.Potentially explosive atmospheres include areas where youwould normally be advised to turn off your vehicle engine.Sparks in such areas could cause an explosion or fire resulting inbodily injury or even death. Switch off the device at refuelingpoints such as near gas pumps at service stations.Observe restrictions on the use of radio equipment in fueldepots, storage, and distribution areas; chemical plants;or where blasting operations are in progress. Areas with apotentially explosive atmosphere are often, but not always,clearly marked. They include below deck on boats, chemicaltransfer or storage facilities and areas where the air containschemicals or particles such as grain, dust, or metal powders.You should check with the manufacturers of vehicles usingliquefied petroleum gas (such as propane or butane) todetermine if this device can be safely used in their vicinity.