Tracing the Historical Development of Far-UVC Light Sources
The story of Far-UVC light technology is one of innovation, perseverance, and scientific discovery. To understand its present-day applications and potential, it’s essential to delve into its historical development, tracing the journey from its conceptual beginnings to its current state of advancement. The concept of using ultraviolet light for disinfection dates back to the late […]
Mold study highlights safer Far-UVC light cleaning alternative
Research suggests that to prevent common mold growth, low-dose Far-UVC light could be applied as a chemical-free addition to manual cleaning of indoor surfaces. A recent study has determined that intermittent low-intensity Far-UVC light can inhibit mold growth below the threshold limit value of 23 mJ/cm2. At 222nm, Far-UVC light was shown to prevent development of […]
Air and Surface Treatment Using Germicidal Ultraviolet-C (GUV)
GUV technology has the potential to contribute significantly to lower pathogen concentrations on surfaces and in the air in many areas of human activities, in food supply and yet to be discovered areas. Consequently, this is expected to lower pathogen transmission and, therefore, infections. However, based on its limitations as a photonic technology, an honest […]
The effects of Far-UVC light for the potential benefit of public health
Dr David Brenner, the Director of the Center for Radiological Research at Columbia University, discusses the work that he and other scientists have done over the last several years around the effects of Far-UVC light for the potential benefit of public health. We are honored to have him on Lit Thinking’s Science Advisory Board. Learn […]
Interview with Dr. David Brenner of Columbia University on Far-UVC 222-nm and the COVID pandemic
The recognition that respiratory pathogens which cause COVID-19 were transmitted through airborne mechanisms was a critical insight into the nature of the disease and the need to decontaminate airborne spaces to eliminate these pathogens. From a technological perspective, the work by Dr. David Brenner and colleagues at Columbia University’s Center for Radiological Research in recent […]
Health Care Institutions: Disinfection Lighting Can Help Address Three Key Challenges
Disinfection ultraviolet lighting solutions can be a cost effective and immediate way to help mitigate Healthcare-associated infections (HAIs) resulting from airborne and surface contaminates. An exciting, new technology, 222 nm UV-C, with the ability to treat a wide range of contaminants, has recently entered the market. Independently tested to be both safe and effective in […]
Experimental Study of the Disinfection Performance of a 222-nm Far-UVC Upper-room System on Airborne Microorganisms in a Full-Scale Chamber
222-nm Far-UVC light is an emerging and promising tool for rapidly inactivating airborne pathogens. This study evaluated the performance of a 222-nm Far-UVC upper-room disinfection system with a 15 W Far-UVC lamp in a full-scale chamber (11.9 m3). One gram-positive bacteria, namely Staphylococcus epidermidis and two gram-negative bacteria, namely Escherichia coli and Salmonella enterica were selected for the experiments. The results showed that both UV inactivation […]
Recommended Air Flow and Exchange for Minimum Quality Air (EPA)
US EPA / January 2023 “ASHRAE recommends that homes receive 0.35 air changes per hour but not less than 15 cubic feet of air per minute (cfm) per person as the minimum ventilation rates in residential buildings in order to provide IAQ that is acceptable to human occupants and that minimizes adverse health effects.” Link […]
A New Method of Pasteurization for Food: UV Radiation for Food Safety
Chemical Engineering Journal / January, 2023 “The application of ultraviolet (UV) light in the food industry has held great promise for a long time. UVC light (200–280 nm) possesses excellent germicidal properties to inactivate a wide range of microbial pathogens (e.g., bacteria, fungi, yeasts, molds, and viruses).” Link to article.
Study Demonstrates No Skin Damage After Long Term Use of Far-UVC
Photochemistry and Photobiology / January, 2023 “The findings from this study support the long-term safety of long-term chronic exposure to far-UVC radiation, and therefore its potential suitability as a practical anti-microbial approach to reduce airborne viral and bacterial loads in occupied indoor settings.” Link to article.