Unverified85% confidenceDecision RuleTime unknown
喷雾型除味剂持续时长通常仅2-4小时，需反复补喷；无火扩香（藤条/香薰石）持续15-45天但除味力弱，仅适合小于15㎡空间；插电式扩香覆盖20-30㎡且可控释放，除味与留香均衡
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85%
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Long-term
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Unverified喷雾式空气清新剂只掩盖异味约30分钟-1小时，若要持续除味应选凝胶/香薰石扩散型，有效期可达30-60天但香气强度递减91% similarUnverified香型持久度：喷雾型留香仅15-30分钟需反复喷，凝胶型持续30-60天但后期香味衰减明显，藤条扩香/无火香薰持续1-3个月且释放最稳定；追求持久选后两者91% similarUnverified持久度看剂型：凝胶/固体香膏可持续30-60天但香味强度递减，插电式加热扩香持续15-30天且强度稳定，喷雾型即喷即散仅维持1-3小时适合即时除味90% similarUnverified留香时长与挥发速度存在矛盾：快挥发型（3-5秒散开）适合应急除味但留香仅1-2小时，缓释型香味淡但可维持数天到数周90% similarUnverified固体香膏/凝胶持续时长约30-60天但除味能力弱，喷雾即喷即用见效快但仅维持数小时至1天，活性炭包吸附饱和后需晾晒再生（约每2-3周暴晒一次），二氧化氯缓释包一般有效期1-3个月90% similar
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