[KongchangAI]
Unverified82% confidenceDecision RuleTime unknown

滤芯寿命看两个指标:额定处理总量(L)和时间上限。中空纤维膜标称寿命常达1000-4000L,但活性炭复合滤芯实际口感衰减常在100-300L就出现,需按实际使用频率折算真实更换成本

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Long-term
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