Unverified85% confidenceSolutionTime unknown
HEPA滤芯堵塞的典型信号是吸力明显下降、机身发热或电机噪音变大，出现这些现象应优先检查滤芯而非判断电机故障
1
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85%
Confidence
Long-term
Relevance
-
First Seen
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UnverifiedHEPA等级越高（H14）过滤越强但风阻越大，同一净化器套上H14滤网会导致风量下降、CADR降低、噪音和能耗上升，反而洁净速度变慢78% similarUnverified过滤等级越高、越接近HEPA，风阻越大，空调制冷/制热效率下降越明显且噪音增大：家用挂机/柜机不建议直接加装H12以上HEPA，会导致风量骤减、内机结冰或电机过载78% similarUnverified过滤精度越高（HEPA）粉尘防护越好，但滤芯更易堵塞导致吸力衰减快，需搭配自动清灰或双滤芯设计，否则频繁拆洗降低效率78% similarUnverified静电驻极过滤透光率和透气性优于HEPA类窗纱，但过滤效率会随使用时间衰减，尤其在高湿度环境下静电效果下降明显76% similarUnverifiedHEPA高效滤网越密集则PM2.5去除率越高，但风阻越大导致实际有效换气量下降、能耗和噪音上升；日常非重污染地区选F7~F9中效滤网+可换H13段更均衡75% similar
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