It is strictly forbidden to use communication tools in refueling and gas pump filters areas. In the explosion-proof area to fight the phone, because the phone press the switch moment to produce a slight spark, or old phone line aging, the use of the process may also produce sparks, which will cause an explosion. In addition, when the gas station through the oil gun to the car or motorcycle fuel tank injection, the original empty tank calibration software of oil vapor will be drifting out, coupled with the new injection of gasoline is also volatile to the air, so that the fuel around the vehicle oil Steam density surge. If you encounter air humidity, low pressure cloudy or foggy weather, poor air circulation, oil and steam density corresponding increase, then hit the mobile phone to cause the possibility of explosion will be further increased.