Ultraviolet germicidal irradiation: Current best practices

Stephen B. Martin, Chuck Dunn, James D. Freihaut, William P. Bahnfleth, Josephine Lau, Ana Nedeljkovic-Davidovic

Research output: Contribution to journalArticlepeer-review

8 Scopus citations

Abstract

Ultraviolet germicidal irradiation (UVGI) is the use of ultraviolet (UV) energy (electromagnetic radiation with a wavelength shorter than that of visible light) to kill or inactivate viral, bacterial, and fungal species. The UV spectrum is commonly divided into UVA (wavelengths of 400 nm to 315 nm), UVB (315 nm to 280 nm), and UVC (280 nm to 200 nm). The entire UV spectrum can, kill or inactivate many microorganisms, but UVC energy provides the most germicidal effect, with 265 nm being the optimum wavelength.

Original languageEnglish (US)
Pages (from-to)28-30+32-34+36
JournalASHRAE Journal
Volume50
Issue number8
StatePublished - Aug 2008

ASJC Scopus subject areas

  • Building and Construction
  • Mechanical Engineering

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