Ultra Violet-Emitting LED Lights Can Kill Novel Coronavirus.
                     ULTRA VIOLET-EMITTING LED 
LIGHTS CAN KILL NOVEL 
CORONAVIRUS
INTRODUCTION
• ACCORDING TO A STUDY WHICH SAYS THE LATEST INVENTION 
COULD BE MOUNTED IN AIR CONDITIONING AND WATER SYSTEMS, 
ULTRAVIOLET (UV LIGHT-EMITTING DIODES (UV-LEDS) WILL 
DESTROY THE NOVEL CORONAVIRUS EFFECTIVELY, EASILY AND 
CHEAPLY.
Source: www.ndtv.com
EVALUATION
• THE RESEARCH PUBLISHED IN THE JOURNAL OF PHOTOCHEMISTRY AND 
PHOTOBIOLOGY B: BIOLOGY, EVALUATED THE DISINFECTION EFFICIENCY 
OF UV-LED IRRADIATION AT VARIOUS WAVELENGTHS ON A 
CORONAVIRUS FAMILY VIRUS THAT INCLUDES COVID-19-CAUSING SARS-
COV-2.
Source: www.ndtv.com
ALTERNATIVES TO CORONAVIRUS 
DISINFECTION
• CURRENTLY, THE WHOLE WORLD IS SEARCHING FOR SUCCESSFUL ALTERNATIVES TO 
CORONAVIRUS DISINFECTION.
•  THE SCIENTISTS SAID THAT PHYSICAL MANPOWER IS NEEDED ALONG WITH TIME FOR 
THE CHEMICALS TO WORK ON THE SURFACE IN ORDER TO DISINFECT A BUS, RAIL, 
SPORTS HALL, OR PLANE BY CHEMICAL SPRAYING.
Source: www.indiatoday.com
DISINFECTION USING LED
• HOWEVER, DISINFECTION SYSTEMS BASED ON LED BULBS CAN FOR 
EXAMPLE, BE MOUNTED IN THE VENTILATION SYSTEM AND AIR 
CONDITIONER AND STERILISE THE AIR SUCKED IN AND THEN RELEASED 
INTO THE ROOM. 
Source: www.ndtv.com
ULTRAVIOLET LIGHT
• SCIENTISTS ALSO DISCOVERED THAT DESTROYING THE CORONAVIRUS USING LED BULBS 
THAT RADIATE ULTRAVIOLET LIGHT IS VERY EASY. 
• THE VIRUSES WERE DESTROYED USING CHEAPER AND MORE EASILY AVAILABLE LED 
BULBS THAT USE LESS ENERGY AND DO NOT CONTAIN MERCURY, SUCH AS STANDARD 
BULBS.
Source: www.physicsworld.com
COMMERCIAL AND SOCIETAL IMPLICATIONS
• THE RESEARCHERS CONCLUDE THAT, CONSIDERING THE EXTENSIVE USE OF 
SUCH LED LAMPS, THE THESIS HAS COMMERCIAL AND SOCIETAL 
IMPLICATIONS.
Source: www.ndtv.com
EFFECTIVENESS
• THEY SAID THAT WITH THE REQUIRED MODIFICATIONS, THE BULBS COULD 
BE USED IN AIR CONDITIONING, VACUUM AND WATER SYSTEMS AND THUS 
BE ABLE TO CLEAN LARGE SURFACES AND SPACES EFFECTIVELY.
Source: www.physicsworld.com
RISKY FACTOR
• THE RESEARCHERS SAID THE DEVICE MUST BE BUILT SO THAT A HUMAN IS 
NOT EXPOSED DIRECTLY TO LIGHT, ADDING THAT THE USE OF UV-LED TO 
DISINFECT SURFACES INSIDE HOMES IS VERY RISKY.
Source: www.ndtv.com
HOW IT WORK?
• THE RESEARCHERS MEASURED THE OPTIMUM WAVELENGTH FOR CORONAVIRUS KILLING AND FOUND THAT 
A DURATION OF 285 NANOMETERS (NM) WAS JUST AS EFFECTIVE AS A WAVELENGTH OF 265 NM IN 
DISINFECTING THE VIRUS, TAKING LESS THAN HALF A MINUTE TO ELIMINATE MORE THAN 99.9% OF THE 
CORONAVIRUSES. 
• SINCE THE COST OF 285 NM LED BULBS IS MUCH SMALLER THAN THAT OF 265 NM BULBS, THIS FINDING IS 
IMPORTANT, AND THE FORMER ARE ALSO MORE READILY AVAILABLE.
Source: 
www.manoramaonline.com
WHAT IS THE FUTURE?
• IN THE FUTURE, RESEARCHERS WILL TEST THEIR UNIQUE COMBINATION OF 
COMBINED HARM PATHWAYS AND MORE MODERN THEORIES ON THE 
COMBINATION OF SUCCESSFUL DIRECT AND INDIRECT HARM TO BACTERIA 
AND VIRUSES ON DIVERSE MATERIALS, AIR AND WATER.
Source: www.ndtv.com