防毒口罩和防毒面具,学名简称呼吸防护器,其作用主要是为了防护工人在生产过程中不致吸入含有危害物质的空气而引起中毒。其类型可分以下数种:一、供给空气的呼吸防护器他用本类呼吸防护器者,所需要的空气(或氧气)是从另外的地方设法供应的,而不是现场所的空气,有下面各种型式:(一)自带式氧气(或空气)呼吸防护器:该器是用一个钢甑由使用的人随身携带。甑内盛储压缩氧气(或空气),呼吸通路与外界隔绝(见图1),使用者所呼出的二氧化碳,可由通路中预置的化学药品除去,苏联还有一种自带式呼吸 Gas masks and gas masks, short name of respiratory protection, its role is mainly to protect workers in the production process will not inhale the air containing hazardous substances and cause poisoning. The type can be divided into the following categories: First, the air supply respiratory protection He used this type of respirator, the required air (or oxygen) is managed from another place to supply, rather than the air at the scene, there The following various types: (a) self-contained oxygen (or air) respiratory protection: The device is used by a person with steel 随 carry. The oxygen in the bladder (or air) is stored in the bladder, and the breathing path is isolated from the outside world (see Figure 1). The carbon dioxide exhaled by the user can be removed by chemicals preset in the pathway. The Soviet Union also has a spontaneous breathing