UV Disinfection Technology
Source : PIB
GS III : Science and Technology- developments and their applications and effects in everyday life

Why in News ?

CSIR-Central Scientific Instruments Organisation (CSIO) transfers the UV Disinfection technology to combat SARS-CoV-2 to 27 indigenous manufacturers.

Key Facts

• To handle fast air flows to be fitted with minimal intervention in air-ducts of existing HVAC systems that are widely used in indoors in industrial and commercial environment.
• UV-C is energy efficient system, improves airflow through coils, enhances indoor air quality,requires less maintenance, easy to retrofit with any existing system having AHU ducts, and has low initial setup cost.
• The system comes with commercialised standards and certifications.

Why UV Disinfection Technology ?

• Airborne route of transmission of SARS-CoV-2 via aerosols which is now considered to be important by international agencies WHO, REHVA, ASHRAE and by health authorities in several countries.
• Airborne transmission is a major risk in indoor settings.
• SARS-CoV-2 viral particles could be detected in air even after 2 hours of exit of infected persons from a room and at distances much greater than a few meters as well.
• Based on these studies and recognizing the need for effective solutions of viral disinfection the challenge UV technology required.
  • CSIR-CSIO has developed an UV-C air duct disinfection system.

UV Disinfection Technology

• The disinfection system can be used in auditoriums, large conference rooms, classrooms, malls etc. which will

  

  provide a relatively safer environment for indoor activities in the current pandemic.

• The technology has been developed according to the requirements for deactivation of SARS COV-2 virus contained in an aerosol.
• UV-C deactivates over 99 % of viruses, bacteria, fungus and other bio – aerosols etc. with appropriate dosages using 254nm UV light.
• Use of UV-C may also help in ameliorating the fungal infections being witnessed during the current wave of the pandemic.
• It has low initial setup cost.
• CSIR-CSIO has transferred the technology to different companies.
• It is available now for deployment with wide availability throughout the country via these companies.

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