Assertion: diving's risk | /r/CapableOf | lose consciousness
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text: A blockage to the constant mass flow orifice is one of the more hazardous failures of this type of semi-closed rebreather, as it will restrict the feed gas supply and may lead to a hypoxic loop gas with a high risk of the diver losing consciousness and either drowning or dry asphyxiation.{Fatality cases 19 and 64, www.deeplife.co.uk