It is a device worn for the purpose of supplying breathable air in an atmosphere containing oxygen deficiency, smoke, dangerous gases, and other suspended particles that are likely to harm the breathing process. Operators who work with hazardous substances or who are located in dangerous areas have to wear a self-contained breathing apparatus. Self-contained breathing apparatus set can be categorized further into escape-only or entry-and-escape. Escape-only SCBAs are often continuous flow types with hoods that can be worn to give instant emergency protection. Protection against toxic gases This of course, is the most important advantage of SCBA in a ship since it shields the wearer from toxic gases and smoke. In a fire incident, toxic products of fire combustion products like carbon monoxide and cyanide may be produced. SCBA units contain a self-contained source of fresh air to protect the wearer and, if needed, allow the worker to complete his tasks or exit the hazard...
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