How does Care222® work?
Say hello to Dr. Holger Claus, our distinguished UV light expert, with over 30 years of researching and developing new lighting, optical, and electrical products. Dr. Holger will serve as your guide in unraveling the science of UV and Far UV-C light. He’ll break down how UV light works, how it affects us, and will illuminate new innovations that have been made in the Far UV-C technology space.
UV Light Disinfection: An Introduction
UV lights have been used as a disinfectant in medical and food-processing facilities for years. Unfortunately, UV light disinfection has not been able to take place while people were present - until now.
Far UV-C 222nm Light Reduces Germs Without Penetrating Skin or Eyes
While longer wavelengths like 254nm can penetrate the layers of our skin and cause burns, skin cancer, and damage to the DNA in our skin cells, the shorter wavelength of Far UV-C 222nm light has a limited ability to penetrate past the outer layer of our skin. This layer, the stratum corneum, consists of dead skin cells and serves as the primary barrier between our bodies and the environment. The outermost section of our eye, known as the tear layer, functions in a similar manner, preventing penetration of the 222nm wavelength into the cornea.
Far UV-C 222nm Light Can Reduce How Often We Use Chemicals
Since Far UV-C 222nm light can be used with people present, it can reduce the number of pathogens in the air and on surfaces continuously. This can reduce how often chemicals must be used throughout the day to keep our shared spaces clean.
Filtered Far UV-C: How Care222® Technology Stands Apart
The real breakthrough in our technology came with the development of a new kind of light filtration system. Our Far UV-C excimer lamp module with short pass filter prevents longer wavelengths of UV light that are above 230nm from being emitted—an especially important feature that other 222nm and Far UV-C emitting products do not have. That’s why the proprietary Care222® module is a better choice than unfiltered excimer lamps used in disinfecting systems.
Ushio’s Care222® filtered Far UV-C technology (“Care222 Technology”) is protected under U.S. and non-U.S. patents covering apparatuses and methods for inactivating viruses or killing bacteria with combinations of a light source and an optical filter that block potentially harmful UV-C wavelengths. Inventions in these patents are credited to Dr. David Brenner, et al., and assigned to Columbia University. Ushio Inc. is the worldwide exclusive licensee of these patents.