[KongchangAI]
Unverified82% confidenceCautionTime unknown

需去除硝酸盐、氟化物、砷等溶解性污染物时不建议依赖重力过滤器——普通活性炭和超滤膜对这些无效,须选专门标注NSF/ANSI 53认证并含特定介质的产品或改用反渗透

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