Potentially Explosive EnvironmentsHealth and safety informationSwitch your device off when in any area with a potentially explosiveatmosphere and obey all signs and instructions. Sparks in such areascould cause an explosion or fire resulting in bodily injury or even death.Users are advised to switch the device off while at a refueling point(service station). Users are reminded of the need to observerestrictions on the use of radio equipment in fuel depots (fuel storageand distribution areas), chemical plants or where blasting operationsare in progress.Areas with a potentially explosive atmosphere are often but not alwaysclearly marked. They include below deck on boats, chemical transfer orstorage facilities, vehicles using liquefied petroleum gas (such aspropane or butane), areas where the air contains chemicals orparticles, such as grain, dust or metal powders, and any other areawhere you would normally be advised to turn off your vehicle engine.