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Science & Tech.
Pradeep Kumar

23/05/21 10:00 AM IST

CSIR transfers the UV Disinfection technology to combat SARS-CoV-2

In news

CSIR-CSIO has developed an UV-C air duct disinfection system

Highlights
  • 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 with necessary ventilation measures, necessary safety and user guidelines and tested Bio-safety standards etc.
  • 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.
  • The 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.
Reason behind developing this technology
  • There has been increasing evidence for 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.
  • The airborne transmission is a major risk in indoor settings.
  • Significantly, research carried out by CSIR constituent labs, Centre for Cellular and Molecular Biology (CSIR-CCMB) and CSIR-Institute of Microbial Technology (CSIR-IMTECH) in September 2020 had demonstrated experimentally that 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.
Source: PIB

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