Ultraviolet germicidal irradiation (UVGI) is the use of ultraviolet radiation to inactivate microorganisms. UVGI systems predominantly use Ultraviolet C (UVC) radiation at a wavelength of ∼254 nm that is produced by low pressure mercury vapor or amalgam lamps. UVGI is applied in a variety of ways. Upper air systems disinfect air in rooms as it circulates into a region irradiated by fixtures located safely above the occupied zone. In-duct systems irradiate ventilation airstreams to inactivate microorganisms "on the fly" before air is delivered to occupied spaces. The primary purpose of upper air and in-duct systems is to reduce the risk of infectious disease transmission.
|Original language||English (US)|
|Number of pages||3|
|State||Published - Apr 1 2011|
All Science Journal Classification (ASJC) codes
- Building and Construction
- Mechanical Engineering