FIELD: masks for scuba diving.
SUBSTANCE: invention relates to the field of masks for scuba diving, and in particular to masks used for scuba diving with a breathing tube. The diving mask contains a tube with a valve. The valve includes a valve opening to allow the passage of a fluid medium, in particular air, between the outer space of the tube and the inner space of the tube; and a valve closure, such as a float, which is movable between an open position, in which the valve opening is open, and a closed position, in which the valve opening is closed by the valve closure. The mask also contains a balancing means for limiting the pressure difference between the internal pressure of the mask and the external pressure. The balancing means is configured to allow fluid to pass from the outer space of the mask to the inner space of the mask when the mask is in use by the user and when the closure element is in the closed position.
EFFECT: comfortable use of the mask is achieved.
13 cl, 4 dwg
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