The present invention relates to a mask assembly for golden time capable of being simply and quickly worn within the golden time in a situation generating harmful gas. According to the present invention, the mask assembly for golden time comprises: a mask which includes a contact surface covering the nose, the mouse, and eye portions of a wearer to come in contact with the face of the wearer and an exposure surface formed on the opposite side to the contact surface, and has an adhesive layer formed on the contact surface to be attached to the face of the wearer; a purification unit which is mounted in the mask and is disposed at a position corresponding to the nose and the mouse of the wearer to purify harmful gas; and a checking unit which is mounted in the mask, blocks inflow of the harmful gas, and is disposed at a position corresponding to the eyes of the wearer to enable the wearer to visually check the outer space of the exposure surface.
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