| 摘要 |
PROBLEM TO BE SOLVED: To provide a full-face diving mask which allows high-quality voice call in water.SOLUTION: A full-face diving mack 100 has a water-tight space between the inner surface and the user face and includes a face contact part 101 which adheres to the user face to form the water-tight space, in-water glasses part 102 which are held from the face contact part 101 by connection parts and secure visual field in water, a mouth piece attachment part 103 for introducing air from an air cylinder into the water-tight space and a degassing plug 108 which is arranged at a position higher than that of the cavity of the ear and discharges air in the water-tight space. The quality of voice call is improved by alleviating vibration noise produced by bubbles to a bone conduction speaker 107. |
