UPF300+是真实存在的吗？ - 知乎
04 July 2025 admin
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而且不止是300，更高的数据也是有可能实现的，但你会发现分母越大，阻隔率的差异就越小了，所以UPF值高于50以后防护率是有所增加，但差异几乎可以忽略不计，这也是为什么国标要求UPF40+是防晒纺织品的合格标准 （防护率相当于97.5%），而UPF50+是防晒纺织品 ...
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