UVGI in air handlers

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

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 languageEnglish (US)
Pages (from-to)70-72
Number of pages3
JournalASHRAE Journal
Volume53
Issue number4
StatePublished - Apr 1 2011

Fingerprint

Irradiation
Air
Microorganisms
Ducts
Mercury amalgams
Mercury (metal)
Electric lamps
Ultraviolet radiation
Ventilation
Vapors
Radiation
Wavelength

All Science Journal Classification (ASJC) codes

  • Building and Construction
  • Mechanical Engineering

Cite this

Bahnfleth, William P. / UVGI in air handlers. In: ASHRAE Journal. 2011 ; Vol. 53, No. 4. pp. 70-72.
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Bahnfleth, WP 2011, 'UVGI in air handlers', ASHRAE Journal, vol. 53, no. 4, pp. 70-72.

UVGI in air handlers. / Bahnfleth, William P.

In: ASHRAE Journal, Vol. 53, No. 4, 01.04.2011, p. 70-72.

Research output: Contribution to journalArticle

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N2 - 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.

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