Glossary

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Value Recovery
Redirecting materials typically targeted for landfill or incineration into useful end use products; energy could be one of those products. See "Reclamation."

Ventilation
Process by which outside air is conveyed to an indoor space.

Ventilation Effectiveness
The system's ability to remove pollutants generated by internal sources in a space, zone, or building. In comparison, air change effectiveness describes the ability of an air distribution system to ventilate a space, zone, or building.

Volatile
Any substance that evaporates readily.

Volatile Organic Compound (VOC)
Organic substances capable of entering the gas phase from either a liquid or solid form.