Leveraging Technology as a Response to the COVID Pandemic

Chapter 8 Combating COVID-19 with Germicidal Ultraviolet “C” Light

Arthur Krietenberg

DOI: 10.4324/b23264-8

Contents

• What Is Germicidal UVC?
• Mode of COVID-19 Transmission Affects UVC Disinfection Strategies
• Types of UVC Disinfection Equipment Used against COVID-19
• Current UVC Generation Technologies
• UVC Measurement and SARS-CoV-2 Susceptibility
  • Units of UVC Measurement
  • UVC Measurement Devices
  • UVC Susceptibility of SARS-CoV-2 Relative to Other Microbes
• UVC Safety
• The Physics of UVC Drives Optimal Device Design
  • UVC Distance to Target
  • UVC Angle of Incidence
  • Line of Sight, Shadows, and Poor Reflection
  • The Canyon Wall Effect
  • UVC Transmission and Absorption by Common Materials
  • Effect of UVC on Materials
• A Demonstrative Failure of UVC to Disinfect ...