Unverified85% confidenceDecision RuleTime unknown
二手羽绒服判断填充物保留度看蓬松回弹：用手压扁后10秒内快速回弹说明羽绒未板结，回弹缓慢或有明显硬块说明羽绒已受潮结团，保暖性下降30%以上
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85%
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Long-term
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Unverified二手羽绒服重点检查绒朵蓬松恢复力：用手压扁后3秒内能回弹说明含绒量未受潮结块，回弹迟缓或有硬块说明填充物已受潮氧化，保暖性下降40%以上91% similarUnverified二手羽绒服看填充物老化：用手拍打观察回弹速度，3秒内恢复蓬松说明绒质保留良好，若长期压缩后成团结块则蓬松度已衰减30%以上，保暖性大打折扣88% similarUnverified验货时用手抓捏后松开，优质羽绒应在3-5秒内自然回弹恢复原状；若回弹缓慢或按压后长时间凹陷，说明羽绒已结块或含绒量虚标，保暖性大幅折损85% similarUnverified验货时用手按压羽绒服后松开，优质羽绒3-5秒内快速回弹恢复蓬松；若回弹缓慢或按压后手感有硬块，说明羽绒受潮、结块或含绒量不足84% similarUnverified二手购入时需重点检查蓬松回弹：压扁后无法在数秒内明显回弹，说明羽绒填充物受潮板结或大量流失，保暖性已严重下降，不建议购买。80% similar
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