Unverified86% confidenceCautionTime unknown
带内置气室反射铝膜（如断热桥结构）的充气垫R值可达4-7且轻量，纯空气充气垫（无隔热层）R值仅1-2，冬季勿用无反射膜的普通充气垫
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86%
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Long-term
Relevance
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Unverified充气垫内部若无隔热填充（仅空气柱结构）保暖性差，冷空气在气室内对流会带走体热，看似厚但R值可能仅1.5-2；带反射膜或纤维填充的充气垫R值可达4以上85% similarUnverified带反射铝膜（如Thermolite/热反射层）的空气垫在同等厚度下R值可提升约1-2，冬季款多采用此结构，选购冬季垫应确认含反射层而非单纯加厚84% similarUnverified充气垫R值与厚度不成正比，单层充气结构R值往往不足2，隔热靠内部反射膜或填充绒；看到厚6cm但无隔热层的充气垫别指望它保暖78% similarUnverified冬季或需要极致保暖时不要单独使用普通充气垫，充气垫内部空气对流会散热，应搭配R值标称的专用充气垫或在下方加泡棉垫75% similarUnverified冬季露营解决方案：地面隔热用泡沫垫（R值约2）打底+充气垫（R值≥4）叠加，双垫总R值达6以上，配合适温睡袋可应对零下10-20度73% similar
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