Study of UV-C LED Technology on In-door Air Disinfection: An Effective Mercury-free and Ozone-free Method to Irradicate Airborne Microorganisms

Le résumé fourni par la source

The aim of this study was to evaluate the efficacy of a novel air sterilization system on airborne microorganisms in both lab environment and office environment. Here we used a UV-C LED based technique to continuously purify the air. It was observed that in lab testing environment, the disinfection rate of the UV-C LED system is 99.94% against staphylococci albus (8032) within a 20 m3 space in 2 hours, while 99.6%, 99.02% and 98.65% against natural microorganisms in 2 hours within 100 m3, 150 m3 and 210 m3 space respectively. Additionally, for a 5-day onsite testing conducted in normally operating offices, the results show a disinfection rate up to 92% against natural airborne microorganisms. The results also show zero ozone emission from the UV-C LED based air sterilization devices. This study demonstrates a promising role for this UV-C LED based novel technology in infection control and prevention by decreasing the spread of airborne pathogens effectively and efficiently without introducing hazardous mercury or any chemicals.

Ce résumé expose les affirmations des auteurs. BNTIC ne l’interprète pas comme une validation indépendante des résultats.