Unverified78% confidenceTradeoffTime unknown
除甲醛效果与CADR是权衡关系：活性炭滤芯越厚除醛越强但会增加风阻、降低颗粒物CADR并增大噪音，纯除PM2.5和纯除醛在单机上难以兼顾最优
1
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78%
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Long-term
Relevance
-
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Unverified除甲醛能力(活性炭克重)与颗粒物CADR是此消彼长：厚活性炭层增加风阻降低颗粒物CADR，一体滤芯往往两者都平庸；重度除醛建议选HEPA与活性炭分层可分别更换的机型86% similarUnverified除甲醛功能与颗粒物净化会互相牵制：活性炭层增厚提升除醛能力但增大风阻，降低颗粒物CADR并增加噪音。纯除颗粒物需求不必为除醛滤芯买单85% similarUnverified除甲醛需要更厚更重的活性炭层，会显著增加风阻从而拉低颗粒物CADR并提高噪音；纯净化PM2.5和高效除醛难以在同一台机器上兼得最优83% similarUnverified除甲醛型（厚活性炭）和纯颗粒物净化型是权衡关系：除醛滤芯风阻大、颗粒物CADR会下降，且活性炭吸附饱和后会二次释放，需比HEPA更勤更换81% similarUnverified颗粒物CADR与甲醛CADR是两套指标，主打除甲醛的活性炭机型往往颗粒物过滤配置较弱；湿疹核心需求是除过敏原颗粒物，应以颗粒物CADR和HEPA等级为主，甲醛净化为辅80% similar
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