The present invention relates to a breathing device for swimming, and more particularly not to inform about the respiratory apparatus for swimming in which the user can instantly know that the emergency situation no breath outside the case to measure the user's breath does a user does not breathe will be.
According to the invention, the mouth in the mouth inlet is formed of a mouthpiece shape to breathe, connected to the inlet supply of inspiration, or a hollow for discharging the expiratory breathing tube, formed inside the trachea detect breathing It is formed in the respiration sensor and the outer surface of the trachea to provide a breathing device for swimming comprising a display unit which is exposed to the outside through the respiration detection unit whether the user's breathing is detected by the light source.