Unverified50% confidenceDecision RuleTime unknown

全遮光需求（如夜班族白天睡眠、影音室）应选遮光率≥99%的三层复合织物或涂层布，标称'遮光率90%'的产品实测仅能挡光70-80%，白天卧室仍明显透光

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Unverified卧室遮光选全遮光布（遮光率≥90%），需选用高密度涤纶或加涂层/三层复合工艺；仅靠深色棉麻布遮光率通常只有50-70%，午睡或值夜班人群不够用92% similar Unverified遮光率≥90%（三级遮光）适合客厅普通需求，卧室建议遮光率≥99%（全遮光）搭配涂层布或高密植绒面料，才能实现白天午睡的黑暗环境91% similar

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