Unverified90% confidenceDecision RuleTime unknown

选购UV-C紫外线消毒器需确认波长在253.7nm附近，这是杀菌效果最强的黄金波段，杂牌产品常用普通紫光LED（400nm左右）冒充UV-C，几乎无杀菌作用

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牙具消毒器category

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Unverified杀菌用UV-C波长必须在253.7nm附近（有效范围250-260nm），标称'紫外线'但未标明UV-C或波长的多为UV-A假消毒产品，无杀菌能力90% similar Unverified紫外线（UV-C）消毒器杀菌波长需达到253.7nm才有效，购买时应确认标注UV-C波段而非普通UV或UVA，后者对细菌灭活率不足89% similar Unverified紫外线（UV-C）消毒器需波长在253.7nm左右才对细菌病毒有效，选购时应确认标注UV-C波段而非普通紫外灯或蓝光；单纯蓝光/负离子对牙刷灭菌效果有限88% similar

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