| 摘要 |
PCT No. PCT/SE93/00057 Sec. 371 Date Jul. 6, 1994 Sec. 102(e) Date Jul. 6, 1994 PCT Filed Jan. 28, 1993 PCT Pub. No. WO93/14819 PCT Pub. Date Aug. 5, 1993.A protective respiratory device (1) in the form of a half-mask (2) is designed to cover the nose and the mouth of the wearer and is combined with a bag-shaped hood (3) designed to enclose the head of the wearer and provided with a visor (12) in front. Round the bag opening, the hood (3) is provided with an elastic sleeve designed to surround the neck of the wearer in a tight-fitting fashion. A first elastic band (9) arranged in the hood extends between the two sides of the half-mask and is intended to be applied round the back of the head or the nape of the neck of the wearer. A second elastic band (13) arranged in the hood and extending rearwards from a hood portion corresponding to the forehead of the wearer is connected to the first band (9) at the back. The second band (13) is adapted to be placed over the crown of the head of the wearer and has such a width that it will then largely surround the head of the wearer also laterally. |
