[KongchangAI]
Unverified85% confidenceDecision RuleTime unknown

滤芯更换成本是长期核心开支,购买前需核算:RO膜寿命约2-3年,PP棉/活性炭前置滤芯需6-12个月换一次,年均耗材成本常与机器本身相当,勿只看首次购机价

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85%
Confidence
Long-term
Relevance
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