Huawei U8100 User Guide - Manual (Page 165)

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Appendix
the opposite side of the pacemaker and do not carry the
device in your front pocket.
Potentially Explosive Atmosphere
Power off your device in any area with a potentially explosive
atmosphere, and comply with all signs and instructions. Areas
that may have potentially explosive atmospheres include the
areas where you would normally be advised to turn off your
vehicle engine. Triggering of sparks in such areas could cause
an explosion or a fire, resulting in bodily injuries or even deaths.
Do not power on your device at refueling points such as service
stations. Comply with restrictions on the use of radio equipment
in fuel depots, storage, and distribution areas, and chemical
plants. In addition, adhere to restrictions in areas where blasting
operations are in progress. Before using the device, watch out
for areas that have potentially explosive atmospheres that are
often, but not always, clearly marked. Such locations include
areas below the deck on boats, chemical transfer or storage
facilities, and areas where the air contains chemicals or particles
such as grain, dust, or metal powders. Ask the manufacturers of
vehicles using liquefied petroleum gas (such as propane or
butane) whether this device can be safely used in their vicinity.