What is UV-C?

Through the last 40 years UV-C light has been used for disinfecting water, air, pharmaceutical products and different surfaces. 

The sun radiates UV-light in three different wavelengths: UV-A, UV-B and UV-C. While UV-A and UV-B can reach the earth, UV-C is absorbed in the ozon layer. UV-C has a very short wavelength. The short wavelength and the fact that UV-C is able to penetrate cell walls makes UV-C useful for disinfection. 

UV-C for disinfection

Viruses and bacteria use DNA and RNA when they multiply and spread. When viruses and bacteria is exposed to UV-C-light the function of their DNA and RNA is disturbed and their ability to infect a host cell is ruined. This makes viruses and bacteria unable to spread and they are considered deactivated.  

puriZAP’s effect on coronavirus

puriZAP® is designed to deliver approximately 6 mJ/cm2 pr. second when used 12 mm above the surface that is being disinfected. A new study of the effect of UV-C-light on SARS CoV-2 (also known as coronavirus) shows, that it takes 3,7 mJ/cm2 to deactivate 99.9% of the virus on a surface. This means that puriZAP® is able to deactivate SARS CoV-2 on a surface in less than one second when used 12 mm above the surface. 


Read the full study from Bianco et al. here