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Life Protector can save miners’ lives when mine disaster happened. If there is mine collapse or gas explosion, some liquid substance in the safety helmet can change to gas rapidly and fill the balloon which can separate the miner and the outside environment to protect miner’s life. The balloon can block falling objects, and is made by heat-resisting material. The miner can press the button on the safety helmet to trigger the device. Impact to the safety helmet can also open it. Fluorescent material on the protector can shine in the dark to attract attention.