《英文msh词典》Air-Purifying Respirators
[入口词] Air-Purifying Respirators
[主题词] Respiratory Protective Devices
[中文释义] 空气净化呼吸器
[英文释义] Respirators to protect individuals from breathing air contaminated with harmful dusts,fogs,fumes,mists,gases,smokes,sprays,or vapors.