论文部分内容阅读
一、防毒面具的种类及性能 目前,我国消防、矿山、船舶救护、劳动保护使用的防毒面具,按其功能可分为隔绝式和过滤式两种。隔绝式防毒面具,就是人的呼吸器官完全与外界隔绝,完全依靠防毒面具中的氧气进行呼吸;过滤式防毒面具,就是人用肺部力量通过过滤吸收剂吸进外界空气,过滤吸收剂可机械阻止和吸附空气中的有毒物质。 隔绝式防毒面具不受毒气种类和浓度的
First, the type and performance of gas masks At present, China’s fire prevention, mining, ship rescue, labor protection gas masks, according to their functions can be divided into two kinds of isolation and filtration. Isolated gas masks, that is, human respiratory organs completely isolated from the outside world, completely rely on oxygen in gas masks to breathe; filter gas masks, that is, the human lungs through the absorption of absorbent strength of the air inhaled, filter absorbent can be mechanical Prevent and absorb toxic substances in the air. Isolated gas masks are free from poison gas types and concentrations