本英国标准规定了负压空气净化装置（APD）的要求 在救援、疏散、逃生和危险控制过程中使用全面罩 以及由应急响应人员（消防、救护车、警察和 受化学、生物、放射性污染区域的相关民用机构和工人） 以及核（CBRN）试剂。购买本文件时可获得的所有当前修订均包含在购买本文件中。

This British Standard specifies requirements for negative pressure air purifying devices (APDs) with full face mask intended to be used during rescue, evacuation, escape, hazard containment and decontamination, and similar activities by emergency responders (fire, ambulance, police, and associated civilian agencies and workers) in areas contaminated by chemical, biological, radiological and nuclear (CBRN) agents.All current amendments available at time of purchase are included with the purchase of this document.