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The U.S. Department of Energy (DOE) has published the first round of CALiPER test results for germicidal ultraviolet (GUV) products. The results highlight both substantial energy efficiency opportunities and efforts that are needed to address performance claims and testing limitations.
GUV disinfection technology is among the most effective and energy-efficient methods to reduce airborne disease transmission. GUV installations can play a critical role in meeting new ASHRAE and CDC building design guidelines. The predominant GUV technology is low-pressure mercury (LPM), which has been used in health and institutional settings for decades. Emerging alternatives include UV-emitting LEDs or krypton-chloride-based (KrCl) excimer lamps. Stakeholders, including industry groups, researchers, and consumer advocates, suggested that some products may not be delivering on performance claims, so this report seeks to address these concerns with a rigorous approach.
CALiPER identified several product categories for the first round of testing, including seven portable towers (five LED and two LPM), one whole-room luminaire for occupied rooms (LED), and five whole-room luminaires for vacant rooms (all LPM).
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