The subject innovation, in the galena mask transparent to allow visibility and smooth and the shape modification is using a plastic fabric available material to a predetermined size through which air can be accommodated inside the air storage chamber is formed, the mask main body; It is formed at one side of the mask body and the opening to be opened and closed to allow the air out to the air containing chamber; It is formed ridorok end outwardly along the edges of the opening periphery characterized by including a curling portion formed so as to be easy to open without being in close contact in a direction in which the openings face one another. Thus, it is possible to supply the adoption of relatively simple configuration by products with low price and cost, as well as the galena mask that allows users to easily maximize protect people from the toxic gases to be able to wear galena mask in a short time is provided.