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Bare‐bulb Upper‐Room Germicidal Ultraviolet‐C (GUV) Indoor Air Disinfection for COVID‐19

See authored by Dr. Bruce L Davidson. Reliable indoor air disinfection could make clinical and other necessary indoor spaces safer during epidemics with airborne transmission like COVID‐19. Low‐dose upper‐room germicidal ultraviolet‐C (GUV 254 nm) is well‐suited for this because of the SARS‐CoV‐2 virus’ sensitivity to GUV inactivation and GUV’s relatively easy adaptability to many types of indoor spaces without respect to outside weather conditions. However, most existing upper‐room GUV fixtures are relatively expensive and inefficient at creating an upper‐room disinfection zone due to loss of disinfecting UV‐C photons caused by the casing and louvers designed to protect persons…
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