| 摘要 |
FIELD: devices, apparatus, or methods for life-saving. ^ SUBSTANCE: device comprises helmet made of fireproof material and provided with opening in its bottom section, glass unit, filtering material secured to the helmet mask, and the member that underlies the mask, is mounted on the inner side of the mask, and is provided with the check valve for discharging gas. The bottom section of the helmet is provided with collar made of flexible material and device for securing the member. ^ EFFECT: enhanced reliability. ^ 1 dwg, 1 tbl |
