过滤式防毒面具是国内外广泛使用的重要呼吸器官护具之一,具有携带方便、防护有效等特点。其主要功能是防御有害气体、蒸气和气溶胶经呼吸道进入人体,保障染毒场所作业人员的健康安全。为确保这类器材的有效性、安全性,有关部门研究制订了国家标准,国标号是GB2890-82, 将于今年 Filter gas mask is widely used at home and abroad, one of the important respiratory organs Huju, with easy to carry, effective protection and so on. Its main function is to prevent harmful gases, vapors and aerosols from entering the human body through the respiratory tract, thus ensuring the health and safety of workers working in the area. To ensure the effectiveness of such equipment, safety, the relevant departments to study and formulate a national standard, national standard GB2890-82, will be this year