| 摘要 |
PROBLEM TO BE SOLVED: To provide a breathing protective device allowing to use both hands, run as medium labor, listen to sound, and talk, usable in any harmful gas, oxygen-lack environment, or carbon dioxide environment. SOLUTION: A breathing protective device comprises a hood part 1 and a skirt part 2. The hood part 1 is provided with a visor 3, a mask 4, an absorber 5, an exhalation bag 6, an inspiration bag 7, and a neck dam 8. The inside of the mask 4 is communicated with the exhalation bag 6 through an exhalation valve, with the inspiration bag through an inspiration valve, and directly with a portable oxygen supplier. The adsorber 5 includes adsorent 12 for carbon dioxide, and it is directly communicated with the exhalation and inspiration bags 6 and 7 having expansion properties. The neck dam 8 is formed of elastic material, it closes an opening surface 13 of the hood part 1, and it has a neck hole 14 at a center. The skirt part 2 is continuously developed from a circumferential edge of the opening surface 13 of the hood part 1. |
