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asphyxiantSubstance that blocks the transport or use of oxygen by living organisms. Note: Examples include both physical (nitrogen gas) and chemical (carbon monoxide) asphyxiants.
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asphyxiantA vapor or gas which can cause unconsciousness or death by suffocation (lack of oxygen). Most simple asphyxiants are harmful to the body only when they become so concentrated that they reduce oxygen i [..]
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asphyxiantA vapour or gas that limits or prohibits the body's ability to assimilate (use) oxygen, even though sufficient oxygen may be present, and can cause unconsciousness or death by suffocation (lack o [..]
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