Substance that blocks the transport or use of oxygen by living organisms. Note: Examples include both physical (nitrogen gas) and chemical (carbon monoxide) asphyxiants.
The limiting factor is the available oxygen. The minimal oxygen content is 18% by volume, the maximum is usually set to 22%. Some axphyxiants present an explosion hazard. (OSHA Federal Standard)A chemical (gas or vapor) that can cause death or unconsciousness by suffocation. Simple asphyxiants such as nitrogen, either use up or displace oxygen in the air. They become especially dangerous in confined or enclosed spaces. Chemical asphyxiants, such
A substance which has the properties to suffocate a living being. See Simple Asphyxiant and Chemical Asphyxiant.
<pharmacology> A type of poison which works by depriving tissues of oxygen. ... (09 Oct 1997) ... 
(as-fik´se-әnt) any substance capable of producing asphyxia.
Type: Term Pronunciation: as-fik′sē-ănt Definitions: 1. Producing asphyxia. 2. Anything, especially a gas, that produces asphyxia. Synonyms: asphyxiating
asphyxiating or tending to asphyxiate.