National trade body The British Compressed Gases Association (BCGA) has revised its guidance relating to reduced oxygen atmospheres.
Hypoxic air fire suppression systems can be found in facilities including library archives, document stores and museums, where they take oxygen levels down from usual oxygen rate of 21%, to 15% or even lower, to reduce the threat of ignition.
In food environments they help deter oxidation of products and extend shelf-life.
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