Unverified80% confidenceFactTime unknown
海绵越用越小是正常损耗（研磨消耗），判断耐用度看密度而非厚度；使用时轻压慢擦比用力搓更省海绵
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80%
Confidence
Long-term
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Unverified海绵密度与去污/耐用成正比：低密度泡棉手感松软但一挤就变形、易撕裂，寿命短；选择时可捏压测试，回弹快、无明显永久凹陷的高密度款更耐用86% similarUnverified海绵密度越高（手感越紧实）越耐用、越不易掉屑，但吸水和起泡能力略下降；廉价大孔疏松海绵起泡快但一周就撕裂掉块81% similarUnverified海绵密度越高（发泡孔越细）越耐磨越挤不烂，但吸水与储泡能力下降；低密度大孔海绵出泡多但易掉渣变形——洗碗优先中高密度，擦台面可选高储泡低密度81% similarUnverified去污块密度越高（越硬实、单位体积重）越耐用、越不易掉渣碎裂，选购时优选压缩密度高、手感硬挺的产品；蓬松柔软的低密度块用两三下就磨没了81% similarUnverified溶解快的超薄片起泡量少、清洁力弱，加厚片泡沫丰富但携带占空间且溶解慢；短途高频洗手选薄款，长途重度使用（如徒步露营）选加厚款79% similar
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