Unverified70% confidenceTradeoffTime unknown
硅藻土纯度越高吸湿越强，但纯度过高、密度过低会导致质地酥脆易掉粉开裂，密度适中（约0.6-0.8g/cm³）兼顾吸湿与耐用
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70%
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Long-term
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Unverified硅藻土纯度≥60%的摆件吸湿速率明显更高，纯度低于40%多为普通黏土掺硅藻土，吸湿功能形同虚设，购买时可看密度指标：真硅藻土密度低（0.5-0.9g/cm³）拿在手上明显轻87% similarUnverified硅藻土颗粒（无定形二氧化硅）吸放湿能力强、可反复吸潮再干燥复用，常用于花盆调湿垫与鞋柜衣柜除湿，pH近中性不影响植物81% similarUnverified生石灰（氧化钙）干燥剂吸湿量可达自重50%以上，除湿能力约为硅胶的3-4倍，适合大米/坚果等易霉变含油食品，但遇水放热且腐蚀性强，绝对不可入口78% similarUnverified软硅藻泥材质需要定期水洗晾晒维护，不能像硬质硅藻土垫那样用砂纸打磨恢复吸水力，懒于清洁者慎选78% similarUnverified硅藻土纯度≥85%且未添加大量石膏黏合剂的摆件吸湿速度更快，判断方法是滴水后水珠5秒内被吸收无残留水渍77% similar
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