Unverified80% confidenceDecision RuleTime unknown
暖贴发热依赖铁粉氧化，需接触空气才能持续发热，隔着过厚衣物或密封环境会因缺氧导致温度下降甚至熄火；贴在透气棉质内衣外侧效果最稳定
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80%
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Long-term
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Unverified暖贴需接触空气才能持续发热，密封贴在多层紧身衣内会因缺氧降温；应贴在贴身内衣外层，保证有微量透气88% similarUnverified自发热原理以铁粉氧化放热为主，发热温度和持续时间受环境温度和密封性影响，冬季户外使用发热感知可能偏弱83% similarUnverified依赖空气中水分与铁粉氧化发热，在极干燥环境（如冬季暖气房）中发热效果可能偏弱80% similarUnverified发热内衣需贴身穿才能形成锁温空气层，尺码宁小勿大，选错宽松款会因空气对流大幅降低保暖效果80% similarUnverified天丝凉感被的凉感主要来自面料导热性而非主动制冷，在高温无空调环境下凉感有限，不能替代空调降温80% similar
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