在化工生产以及化学品储藏场所,常使用个人防护用具,预防从呼吸道吸入有毒化学物引起的中毒。因此,对呼吸防护用具必须熟知其性能和正确的使用方法。兹对过滤式防毒面具作一介绍。过滤式防毒面具只适合在空气中氧含量正常或基本正常、有毒有害气体的浓度不太高的环境中使用。其重量590～1400克,携带和使 In chemical production and chemical storage sites, personal protective equipment is often used to prevent poisoning caused by inhalation of toxic chemicals from the respiratory tract. Therefore, respiratory protection must be familiar with its performance and proper use of methods. This is an introduction to filter respirators. Filter gas masks only suitable for normal or normal oxygen content in the air, the concentration of toxic and harmful gases used in the environment is not too high. Its weight of 590 to 1400 grams, to bring and make