Unverified88% confidenceFactTime unknown
食品级硅藻土的驱虫原理是物理磨损昆虫外骨骼使其脱水死亡，因此仅在完全干燥环境有效，潮湿或宠物洗澡后立即失效，需重新撒布
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88%
Confidence
Long-term
Relevance
-
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Unverified硅藻土杀虫依靠物理破坏昆虫外骨骼蜡质层使其脱水，因此必须保持干燥，受潮结块后完全失效——潮湿环境（厨房下水、卫生间）需搭配可挤压瓶反复补撒90% similarUnverified硅藻土靠尖锐颗粒破坏虫体外壳，遇水受潮后失效，潮湿环境或宠物洗澡后需重新撒粉，梅雨季效果显著下降82% similarUnverified硅藻土驱虫依赖干燥环境，一旦受潮或宠物淋雨/洗澡后失效，潮湿多雨地区或频繁洗澡的宠物驱虫效果大打折扣，需改用滴剂81% 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76% 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75% similar
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