首次在有人的真实室内场所直接验证远紫外对空气病原体的效果。 First direct demonstration of far-UVC efficacy against airborne pathogens in an occupied indoor location.
研究方法 Method
在动物照护设施的鼠笼清洗间安装四台吸顶式 222nm 灯具,测量气溶胶化鼠诺如病毒,照射强度保持在现行推荐监管限值内。 Four ceiling-mounted 222 nm fixtures in a mouse-cage cleaning room within an animal-care facility. Aerosolised murine norovirus measured, with irradiance kept within current recommended regulatory limits.
能证明什么What it shows
有感染性的空气传播鼠诺如病毒减少 99.8%(95% CI 98.2–99.9%)。台架研究提示该病毒是流感和冠状病毒的保守替代物。 Infectious airborne murine norovirus reduced by 99.8% (95% CI 98.2-99.9%). Bench studies suggest this virus is a conservative surrogate for influenza and coronaviruses.
不能证明什么What it does not show
气流模式、病毒滞留时间和实际受照剂量的不确定性给灭活率估算带来误差。场所为动物设施,非住宅或办公室。 Uncertainties in airflow patterns, virus residence time and delivered dose introduce error into the inactivation estimate. The setting is an animal facility, not a home or office.
备注Note
与既往气溶胶舱研究一致,气溶胶病毒在房间尺度的敏感性显著高于台架实验——这与直觉相反,值得注意。 Consistent with earlier chamber studies, aerosolised virus susceptibility was significantly higher at room scale than in bench-scale tests.