Unverified85% confidenceDecision RuleTime unknown
过滤系统决定吸尘持久力：HEPA+旋风分离双重过滤能防止细灰堵塞滤芯导致吸力衰减，单层海绵滤网机型吸几次后吸力骤降，选购认准可水洗HEPA滤芯
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85%
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Long-term
Relevance
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Unverified带滤网/HEPA的吸吹机型清理灰尘时不会二次扬尘，过敏体质或清理长期积灰环境应优先选带滤网款88% similarUnverified过滤系统等级差异大：多层过滤+HEPA可拦截0.3微米微尘防排风口二次扬尘，单层海绵过滤易漏尘并将细粉尘重新吹散到地面87% 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87% similarUnverified配备HEPA滤网，可拦截细微粉尘和过敏原，但滤网属于耗材需定期清洗或更换以保持过滤效果86% similarUnverified滤网系统优先选HEPA级+可水洗设计，除尘过程中最容易二次扬尘的环节就是倒灰和洗滤网，密封性差的机型会把螨虫过敏原重新释放到空气86% similar
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