Is breathing lung airways or through the cylinder air deep into the sea, many people believe that the cylinder containing oxygen gas and this of course wrong, Valastoana contain specifically on compressed air, even if they contain oxygen, as some believe, this oxygen down a certain shift to gas Sam kills diver, this uses divers to depths of more than one cylinder unit containing other gases for use in those depths, and remain marine and Mknonadtha life worthy of this adventure.
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