60Health and safety informationOther medical devicesIf you use any other personal medical devices, consult themanufacturer of your device to determine if it isadequately shielded from external RF energy.Your physician may be able to assist you in obtaining thisinformation.Switch off your phone in health care facilities whenregulations posted in these areas instruct you to do so.VehiclesRF signals may affect improperly installed or inadequatelyshielded electronic systems in motor vehicles. Check withthe manufacturer or its representative regarding yourvehicle.You should also consult the manufacturer of anyequipment that has been added to your vehicle.Posted facilitiesSwitch off your phone in any facility where posted noticesrequire you to do so.Potentially explosive environmentsSwitch off your phone when in any area with a potentiallyexplosive atmosphere, and obey all signs and instructions.Sparks in such areas could cause an explosion or fireresulting in bodily injury or even death.Users are advised to switch off the phone while at arefuelling point (service station). Users are reminded ofthe need to observe restrictions on the use of radioequipment in fuel depots (fuel storage and distributionareas), chemical plants, or where blasting operations arein progress.Areas with a potentially explosive atmosphere are oftenbut not always clearly marked. They include the areasbelow decks on boats, chemical transfer or storagefacilities, vehicles using liquefied petroleum gas, such aspropane or butane, areas where the air contains chemicalsor particles, such as grain, dust or metal powders, and anyother area where you would normally be advised to turnoff your vehicle engine.