The RHZK series self-containted open-circuit compressed air breathing apparatus are used widely for fire-fighting, chemiecal industry, shipping, laboratory, mine, petroleum, warehouse, factory and metallurgy. It can provide effectively respiratory protecting from toxic gases for fire-fighter, life-saver, rescuer and operator who working in thick smoke, steam, and oxygen deficiency hazardous atmosphere.

The product was awarded the certificate of inspection by state quality testing center for fire-fighting equipment, and it is up to the China standard of GA124'' self-contained open-circuit compressed airbreathing apparatus for fire-fighting, the breathing apparatus for shipping was authorized by the China classification society of shipping.