Respiratory protective devices - Compressed air line breathing apparatus for use with a fullfacemask, half mask or a mouthpiece assembly - Requirements, testing, marking.
呼吸保护装置。与全罩式面罩、半罩式面罩或口罩一起使用的压缩空气导管呼吸装置。要求、试验和标志。
2
Main structured items are: JDQM fullfacemask, air supply valve, pressure regulator valve, backboard, pressure gauge, alarming whistle, medium pressure tube, carbon fiber composite cylinder, etc.
主要结构有：JDQM全面罩、供气阀、减压阀、背板、压力表、报警哨、中压管、碳纤维复合气瓶等。
3
In this case, a full-face respirator is called for. It provides a clear face mask or clear eye pieces that protect the eyes as well.