Maybe in daily life with the SCBA contact is not much, but as long as a little attention can be found in many places SCBA. For example, in fire fighting, chemical, shipbuilding, petroleum, metallurgy, electric power, warehouse, laboratory, mining and other fire key departments, SCBA for firefighters or rescue and ambulance crews in the smoke, gas, steam and anoxic environments such as safe and effective fire-fighting and rescue and disaster relief and rescue work, is the ideal of firefighters or rescue and ambulance personnel individual respiratory protective device.