Superseded90% confidenceDecision RuleTime unknown
暖手宝表面温度应控制在50-55℃以内，超过55℃长时间接触皮肤易造成低温烫伤，选带温控档位（多为45/50/55三档）的产品更安全
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This knowledge claim has been superseded by newer content
贴身暖贴（贴衣物内层）最高温度应≤50℃，直接接触皮肤的暖手宝或握持型可充电暖手器温度不应超过45℃且需有多档温控，长时间同一部位接触超过44℃会造成低温烫伤Sources
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