A laryngeal mask includes an inflatable ring which has an outer periphery, an inner periphery with a welded edge projecting inwardly therefrom, and two opposite first and second wall parts extending respectively from the welded edge to the outer periphery. A gas supply tube has an open end which is connected to the inflatable ring along the welded edge, and a peripheral connection part hermetically sealed to the welded edge. A forward guide tab projects forwardly from the peripheral connection part and extends over a portion of the first wall part. Preferably, the forward guide tab is formed integrally with the peripheral connection part and is welded to the portion of the first wall part.