Hypoxic air venting
Encyclopedia
Hypoxic air venting is an active fire protection
measure that replaces the air within a protected space with inert air that has reduced oxygen concentration. The different concentrations of the components of air are slightly altered; typically, five percent of the oxygen
content can be substituted by nitrogen
. Although hypoxic air is safe to breathe for most people , it prevents fire ignition
in many materials. Hypoxic air units can be fitted into air conditioning plants or mobile units that can be located in or at rooms to be protected.
The United States Federal Aviation Administration has now proposed regulation to retrofit hypoxic ventilation in all commercial airplanes.
Active fire protection
Active fire protection is an integral part of fire protection. AFP is characterised by items and/or systems, which require a certain amount of motion and response in order to work, contrary to passive fire protection.-Fire suppression:...
measure that replaces the air within a protected space with inert air that has reduced oxygen concentration. The different concentrations of the components of air are slightly altered; typically, five percent of the oxygen
Oxygen
Oxygen is the element with atomic number 8 and represented by the symbol O. Its name derives from the Greek roots ὀξύς and -γενής , because at the time of naming, it was mistakenly thought that all acids required oxygen in their composition...
content can be substituted by nitrogen
Nitrogen
Nitrogen is a chemical element that has the symbol N, atomic number of 7 and atomic mass 14.00674 u. Elemental nitrogen is a colorless, odorless, tasteless, and mostly inert diatomic gas at standard conditions, constituting 78.08% by volume of Earth's atmosphere...
. Although hypoxic air is safe to breathe for most people , it prevents fire ignition
Fire triangle
The fire triangle or combustion triangle is a simple model for understanding the ingredients necessary for most fires.The triangle illustrates a fire requires three elements: heat, fuel, and an oxidizing agent . The fire is prevented or extinguished by removing any one of them...
in many materials. Hypoxic air units can be fitted into air conditioning plants or mobile units that can be located in or at rooms to be protected.
The United States Federal Aviation Administration has now proposed regulation to retrofit hypoxic ventilation in all commercial airplanes.