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How Do You Know The UVC Disinfection Is Effective?

September 15, 2020 | By MedBot

Combating COVID-19:

Ways of transmission of the virus

  • Respiratory droplets on surfaces
  • Human contact
  • Potentially aerosol in closed space

 

The virus is venerable to UVGI: generally inactivated by UVGI exposure of only 2-8 millijoules/cm2:

SARS-CoV Disinfection UV-C Dosage Disinfection time needed (UV-C density >=70uW/cm2)
Log1 (90%) = 2.1 mJ/cm2 Log1 = 30 s
Log2 (99%) = 4.2 mJ/cm2 Log2 = 60 s
Log 3 (99.9%) = 6.3 mJ/cm2 Log3 = 90 s
Log 4 (99.99%) = 8.4 mJ/cm2 Log4 = 120 s

 

Methods to study effectiveness of UVGI disinfection: [VCU guidance needed]

  1. Radiometry
  2. Commercial test cards
  3. Environmental culture tests

 

If you want to discuss your cleaning and disinfection needs please contact us at info@medbotnow.com or call us at 407-907-7629.

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