| 摘要 |
An anti-gas mask and a manufacturing method thereof are provided to present a new connection structure of a window for improving airtightness of the mask, and to improve a product efficiency due to an easy and convenient assembly process. The anti-gas mask includes: a window coupling part; a window fixed to the window coupling part; a purifying tank coupler; an exhaust tank coupler; a rubber band or a fastener; first and second prominences formed on the outer periphery of the window for forming a groove for insertion of the window coupling part therebetween; a contact prominence formed on the outer periphery of the inner side of the window at a regular space from the second prominence; a fixing clip having a fixing prominence closely adhering the window coupling part by being adhered to the contact prominence, connected to the second prominence, and formed along the inner periphery.
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