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In the narrow, enclosed space elevators, cell phone coverage is poor, the phone call will result in increased radiation. Experts suggest that even if the phone's electromagnetic radiation below the relevant standards, do not take it lightly, unless in case of emergency, try not to take the subway when the elevator received a cell phone; To reduce the risk of exposure to electromagnetic radiation, it is necessary to shorten the call time; when the signal is not good cause could not hear, do not place the phone close to the ear.
These are our daily lives when using mobile phones should pay attention to some small details, if you have a comprehensive understanding of it? For ourselves and the people around safety and health, please do not call in an elevator and subway. The reason is because using the phone in both places, then its high amount of radiation than we are many times in other places.
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