Aside from the fact that it makes less noise than does an open circuit SCUBA system, what is another major advantage to divers of the 'rebreather' system?
Answer: The rebreather system requires much smaller gas supplies OR is less bulky
Answer: The rebreather system requires much smaller gas supplies OR is less bulky
If the answers is incorrect or not given, you can answer the above question in the comment box. If the answers is incorrect or not given, you can answer the above question in the comment box.