Unverified75% confidenceTradeoffTime unknown
经济性对比：需看有效浓度而非瓶身容量，浓缩型每次仅需20-40ml但单价高，稀释型需50-100ml，折算单次成本浓缩型往往更划算；含氯型原料便宜但损耗衣物寿命是隐性成本
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Unverified按‘单次用量成本’而非‘单瓶价格’横向比较：用瓶身标注的推荐用量除以容量，浓缩款单次可能5-10ml、普通款30-40ml，浓缩虽单价高但单次成本反而低84% similarUnverified换算单次成本时以稀释后使用量为准，浓缩型除菌液标称容量小但单次用量仅10-15ml，实际比稀释型更经济；对比时看'每次成本'而非瓶身容量84% similarUnverified补充装经济性对比要看"每毫升单价"而非总价：大容量袋装补充装通常比瓶装便宜40%-60%，但需确认瓶身泵头耐用（可拆洗）才划算，否则频繁换瓶反而浪费84% similarUnverified浓缩倍数看'推荐用量'更靠谱：普通款每次约30-40ml，3倍浓缩款仅需10-15ml；对比浓缩产品应按'每次用量成本'而非瓶身容量判断82% similarUnverified性价比判断应看'每亿活菌成本'而非单瓶价格，小瓶100ml产品单位活菌成本往往远高于大瓶装，日常长期饮用宜选大容量或多联包家庭装82% similar
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